#21  
Old 12-23-2021, 09:03 PM
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Originally Posted by tom s View Post
Does that intake look like a modded Offy 2-4 intake?Tom
All he did was remove the roof of the intake, weld on a flange to match his "Holley Tri-Power" Top, and mount the carbs.

He did deepen the "windows" cast into the manifold between the two side by side plenums.

Basically buys a Offy Dual Quad intake and modifies it to run the Holley 2-bbl carbs. Patterson has been doing this kind of stuff for years.

Anything to make a buck. He wants to sell you his "SPECIAL" Holley Modded Carbs. LOL!

Tom V.

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  #22  
Old 07-19-2022, 01:25 AM
wbnapier wbnapier is offline
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Anyone get one?
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Front: 225/60R15 Height: 25.6"
Rear: 275/60R15 Height: 28"

Last edited by wbnapier; 07-19-2022 at 01:32 AM.
  #23  
Old 07-19-2022, 05:20 PM
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You can get Holley 2-BBls (mechanical carbs in all 3 positions) that flow 625 (2-BBL)
cfm. The BG intake was a good intake once the casting issues were worked out but
still needed to be ported by Dave Wilcox to get any real flow.

Troy has been playing with the Holley stuff for years as an alternative carb system for GM applications and as a OEM intake upgrade
on the Ford Applications.

Tom V.

The single plane intakes mounting dual and triple carbs (OFFY) were a lot better vs the "E" Intakes based on my testing.

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Last edited by Tom Vaught; 07-19-2022 at 05:25 PM.
  #24  
Old 11-19-2022, 03:01 PM
cjs64goat cjs64goat is offline
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That's been talked about for years. They used to offer porting a tripower intake for close to a grand and porting for end carbs. Haven't checked lately.

  #25  
Old 11-19-2022, 03:02 PM
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Meant to reply to 433lemans H&M post.

  #26  
Old 02-18-2023, 02:59 PM
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I tried emailing Dave about the intake, never heard back. Maybe I'll call next week. Has anyone done extensive porting on that repop aluminum tripower intake?

I also saw this, and I plan to talk to this guy and learn more. Been trying to go a little different route and maybe this could work. https://www.ebay.com/itm/16591286669...&segname=11051

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  #27  
Old 02-18-2023, 03:07 PM
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That would certainly fit the “different” bill nicely. I’ve never seen anything like it!


Murf

  #28  
Old 02-18-2023, 03:34 PM
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Quote:
Originally Posted by KGTO View Post

I also saw this, and I plan to talk to this guy and learn more. Been trying to go a little different route and maybe this could work. https://www.ebay.com/itm/16591286669...&segname=11051
No pictures of the intake without the carbs so you can see exactly how he made those Weber 40mm carbs with the bores spread apart work properly. I see nothing actually attaching the carbs to the intake, they’re just sitting on top of it. No linkage or fuel lines, really?

My take is this isn’t even a working setup and what’s there could be duplicated for about half the price. Those 40mm Weber type carbs (ad states type, so not real Webers which would be offshore clones, the latest versions work fine actually) aren’t anything special and likely don’t flow any more than a modified Rochester. Of course the intake would need to be heavily modified to accept that style of carb, a simple adapter plate isn’t all it takes.

All bling for way too much money. Those nice velocity stacks are what draw you in. The air cleaner is just the lid with a filter stuck underneath sitting on top of the stacks, what an attempt at deception.

This same exact eBay ad was discussed in the Lobby a while back:

https://forums.maxperformanceinc.com...d.php?t=862574

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  #29  
Old 02-18-2023, 03:45 PM
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Untouched intake with Webers loosely laid on top?
It's barely even a concept, zero effort mockup.

  #30  
Old 02-18-2023, 03:46 PM
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The carbs are not the earlier "TRUE WEBER 48mm" Italian carbs.

The carbs look like the later "Spanish Made" carbs where they screwed up the
"WEBER" calibrations.

Tom V.

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  #31  
Old 02-18-2023, 06:51 PM
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I've been messaging him, I have his number and I'll call him. I already asked about the fact they were not bolted. He said he has the adapter and the ad states he has linkage for it too. I'm not sure why he wouldn't show it complete.

Thanks for posting the other thread, I tried searching it and figured there had to be a discussion. Anyhow, I'll see what he has to say.

Who is a Weber guru I can talk to? Seems if these would work for with an open plenum it would change my thought of going IR EFI. I like my solid cam and EFI won't. I wouldn't run that air cleaner either, they make screens and filters for the stacks. Why cover it up.

I'd like to use these on an open plenum intake which is why I posted this.

Tom V, your thoughts? Always appreciate your input.

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  #32  
Old 02-18-2023, 06:53 PM
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The common plenum would (in my mind) make the reversion effect of my 108 LSA solid less of an issue. The open plenum tri power would match my power band better too. ...I would think.

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6.0 cert. Fiat bodied altered blown alcohol Pontiac IAII-Sold
  #33  
Old 02-19-2023, 12:48 AM
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Why Weber carbs? Why not a single plane intake with Rochester Tri-Power carbs? I've read so many times through the years that the stock Tri-Power intake is the limiting factor with Pontiac Tri-Powers.

The carbs alone are capable of 800-1000 cfm. So, why Webers?

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  #34  
Old 02-19-2023, 09:40 AM
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Quote:
Originally Posted by KGTO View Post
I tried emailing Dave about the intake, never heard back. Maybe I'll call next week. Has anyone done extensive porting on that repop aluminum tripower intake?

I also saw this, and I plan to talk to this guy and learn more. Been trying to go a little different route and maybe this could work. https://www.ebay.com/itm/16591286669...&segname=11051
H&M did plenum mods on all 3 & porting of my manifold & have to say it worked out excellent & street drivability is flawless with great power . 461 with 424hp & 484 tq. @ the rear wheels. May have some pics of the plenums he did partial removal of them , center is less then the ends.

  #35  
Old 02-19-2023, 02:06 PM
wbnapier wbnapier is offline
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I'll be having my extra stock '65 Tri-power I just purchased and sent it out for port / gasket matching and general porting. The company uses a new process I had never heard of called: https://www.extrudehoneafm.com/

Check out thre videos, it's pretty cool.

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Muncie M22W 1st-2.56 2nd-1.75 3rd-1.37 4th-1.00
3.55 Rear Differential
Front: 225/60R15 Height: 25.6"
Rear: 275/60R15 Height: 28"
  #36  
Old 02-20-2023, 04:04 PM
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Dick, the main reason is for something unique 7nder the hood. I saw your thread regarding the repop intake with your RAIV heads, nice work! But also a lot of work. I didn't realize those intakes had so much core shift. Is there more than one manufacturer on them?

I have not been able to reach Dave at H&M

Extrude honing...I forgot about that process..

I saw this on Butlers site, has anyone seen this intake??
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  #37  
Old 02-20-2023, 04:38 PM
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Extrude honing is a lot of expense for marginal gains. Putting that money towards professional porting work would be a better use of funds.

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  #38  
Old 02-21-2023, 04:32 PM
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Quote:
Originally Posted by KGTO View Post
Dick, the main reason is for something unique 7nder the hood. I saw your thread regarding the repop intake with your RAIV heads, nice work! But also a lot of work. I didn't realize those intakes had so much core shift. Is there more than one manufacturer on them?

I have not been able to reach Dave at H&M

Extrude honing...I forgot about that process..

I saw this on Butlers site, has anyone seen this intake??
I'm planning on getting the extruding honing done. When I do, I will post pictures. The process is very clever.

__________________
1965 Pontiac GTO
455/469 w/ #48 Heads, '65 Tri-Power
9.25:1 CR
Stump Puller Cam
Muncie M22W 1st-2.56 2nd-1.75 3rd-1.37 4th-1.00
3.55 Rear Differential
Front: 225/60R15 Height: 25.6"
Rear: 275/60R15 Height: 28"
  #39  
Old 02-21-2023, 09:00 PM
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Quote:
Originally Posted by wbnapier View Post
The company uses a new process I had never heard of called:
Extrude honing has been around since the 80s, maybe even earlier.

  #40  
Old 02-21-2023, 09:32 PM
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Quote:
Originally Posted by KGTO View Post
I've been messaging him, I have his number and I'll call him. I already asked about the fact they were not bolted. He said he has the adapter and the ad states he has linkage for it too. I'm not sure why he wouldn't show it complete.

Thanks for posting the other thread, I tried searching it and figured there had to be a discussion. Anyhow, I'll see what he has to say.

Who is a Weber guru I can talk to? Seems if these would work for with an open plenum it would change my thought of going IR EFI. I like my solid cam and EFI won't. I wouldn't run that air cleaner either, they make screens and filters for the stacks. Why cover it up.

I'd like to use these on an open plenum intake which is why I posted this.

Tom V, your thoughts? Always appreciate your input.
TRUE WEBER carbs were designed as a INDIVIDUAL BORE/SINGLE RUNNER carb.

Most Weber Carbs (48mm Downdraft & 45 mm Sidedraft) look cool and work great on small CID engines (for the "WOW" effect).

Ford tried Weber carbs on their 289 CID Le Mans engines back in the early 1960s. When they decided to move to the 427 Side Oiler Engines, the WEBER Carbs were way too small for the application. A Friend, Mose Nowland at SVO, had a 58mm experimental Weber carb on his desk. He said a set of them was still too small for the 427 engines.

So except for the cool factor, no Weber carbs are worth mounting on a 400/421/428/455 Pontiac engine, except for a Car Show engine.

I have a full set of the "good" 48mm Weber Carbs I might mount on my 9.5" deck height (366 cid) All Pontiac block.
But again it would be a road race type application on a track. And a Road Race car is the last on the list of cars
I were put together in my lifetime. For other people, racing a road race Pontiac in SCCA events would be very cool.
But not with Webers on it.

Tom V.

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