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Forum: Pontiac - Street 06-13-2024, 09:59 PM
Replies: 40
Views: 4,413
Posted By Tim Corcoran
If you ever plan to race it with slicks often or...

If you ever plan to race it with slicks often or plan to upgrade for more power then get a forged crank
Forum: Pontiac - Street 06-13-2024, 09:25 PM
Replies: 40
Views: 4,413
Posted By Tim Corcoran
I ran a 4.25 Eagle cast crank in a 455 and raced...

I ran a 4.25 Eagle cast crank in a 455 and raced it for many years in a 3550 race weight 65 Lemans making around 650 HP and going low 10's. It finally went and took out the block crank rod and...
Forum: Pontiac - Street 06-08-2024, 02:44 AM
Replies: 2
Views: 379
Posted By Hoodshaker
Keeping in mind this is a late 70's cluster and...

Keeping in mind this is a late 70's cluster and it looks like your cars are early- (edit-my pics won't show for some reason) If these are are the tach plug prongs you're referring to they're studs...
Forum: Pontiac - Street 05-13-2024, 04:17 PM
Replies: 88
Views: 10,493
Posted By 59safaricat
Some additives do what they claim but proper...

Some additives do what they claim but proper maintenance will eliminate the need for most of them except for maybe fuel cleaners.

Witnessed both Seafoam and Marvel Mystery oil unstick...
Forum: Pontiac - Street 04-09-2024, 06:23 AM
Replies: 21
Views: 4,156
Posted By Formulajones
That's really what it boils down to for me. As...

That's really what it boils down to for me. As much as these engines cost these days to build them right and use top notch parts, it's not a hard decision to just put a good rocker arm on it. Budget...
Forum: Pontiac - Street 03-25-2024, 05:10 PM
Replies: 34
Views: 7,987
Posted By Schurkey
Several errors and outright omissions in that...

Several errors and outright omissions in that video, none of which really matter. Kinda torques my jowls, though.

Also some good tips--using a spark tester in addition to an ohmmeter to test...
Forum: Pontiac - Street 03-20-2024, 02:20 PM
Replies: 8
Views: 2,874
Posted By West Coast GTO
Bought and installed a Brawler 850 double pumper...

Bought and installed a Brawler 850 double pumper and had trouble setting idle initially. Adjusted bottom slot correctly and ran pretty well but am changing out to go with Cliff rebuilt Quadrajet.
Forum: Pontiac - Street 03-20-2024, 10:49 AM
Replies: 8
Views: 2,874
Posted By i82much
Can't speak to Brawler specifically but had a few...

Can't speak to Brawler specifically but had a few cheaper Holley and Quick fuel carbs that were lacking in quality control, and found that trading those for more expensive holley/qf carbs did not...
Forum: Pontiac - Street 03-20-2024, 10:02 AM
Replies: 8
Views: 2,874
Posted By napster
Experience & Opinions on Brawler Carbs

Wondering what people have experienced with the Brawler Carb. I have one on a 496 engine. It is a 850 CFM with mechanical secondary. Works very well for me.
Forum: Pontiac - Street 03-12-2024, 12:03 PM
Replies: 17
Views: 2,392
Posted By track73
When I got my RobMc mini starter I installed it...

When I got my RobMc mini starter I installed it so the solenoid was clocked 180 from vertical. It is away from the heat of the headers and engine block.
Forum: Pontiac - Street 03-12-2024, 11:26 AM
Replies: 17
Views: 2,392
Posted By jhein
I had what I thought was pretty bad heat soak...

I had what I thought was pretty bad heat soak problems with the factory starter. But, it never took hours or days to recover. Still, I went to a mini starter and never looked back.

Also to...
Forum: Pontiac - Street 03-10-2024, 02:08 PM
Replies: 33
Views: 4,882
Posted By b-man
For a heavy at like a full-weight ‘69 GTO I’d be...

For a heavy at like a full-weight ‘69 GTO I’d be looking at a more robust 4L80E rather than the somewhat questionable 200-4R.

You’re asking a lot to run low-11s in a street driven car like that....
Forum: Pontiac - Street 02-28-2024, 08:04 PM
Replies: 5
Views: 1,206
Posted By Steve C.
Very similar to Butler custom except with an...

Very similar to Butler custom except with an additional 6 degrees exhaust duration. They are COMP XE lobes.
...
Forum: Pontiac - Street 02-09-2024, 07:31 PM
Replies: 17
Views: 1,442
Posted By 694.1
What he said.

What he said.
Forum: Pontiac - Street 02-09-2024, 07:30 PM
Replies: 17
Views: 1,442
Posted By cnc
Permatex flange sealer. U smear a light film of...

Permatex flange sealer. U smear a light film of it around the outer surface of the metal face of seal that get pushed into the tail stock…….helps seal any small voids
Forum: Pontiac - Street 02-07-2024, 05:16 PM
Replies: 21
Views: 3,116
Posted By Formulajones
Get used to long lead times. Doing this stuff for...

Get used to long lead times. Doing this stuff for a living has put a dent in things as parts becomes harder to get, and more expensive.
I assemble my own engines but it's the parts and machine...
Forum: Pontiac - Street 02-06-2024, 10:28 PM
Replies: 78
Views: 8,802
Posted By Gach
I’m not really sure on heat range but my guess...

I’m not really sure on heat range but my guess would be NGK 8. Up to you.
Forum: Pontiac - Street 02-06-2024, 10:27 PM
Replies: 78
Views: 8,802
Posted By Gach
You should really think about going with NGK race...

You should really think about going with NGK race plug much better plug.
Forum: Pontiac - Street 01-28-2024, 11:09 AM
Replies: 64
Views: 7,752
Posted By mgarblik
I recently had to deal with this exact dilemma on...

I recently had to deal with this exact dilemma on a personal car. Had already bought round port E-heads for my Catalina. But the log jam was the damn exhaust manifolds. Especially with a street...
Forum: Pontiac - Street 01-23-2024, 09:35 AM
Replies: 76
Views: 15,064
Posted By 67Lemons
The other issue with a roller set up is that it’s...

The other issue with a roller set up is that it’s overkill for a stock type rebuild with a stock cam or a person wanting to do a simple cam swap to hot rod their old cruiser. The cost is prohibitive...
Forum: Pontiac - Street 01-04-2024, 09:51 AM
Replies: 8
Views: 2,027
Posted By slowbird
5800 in our 455 with 62 heads, ran 12.2s in our...

5800 in our 455 with 62 heads, ran 12.2s in our 69 GP
6000 in our 400 with 16 heads, ran 11.8s in our 73 Ventura
Forum: Pontiac - Street 01-04-2024, 08:03 AM
Replies: 8
Views: 2,027
Posted By Cliff R
Right on the dyno DONE by 4800rpm's. 455, 7K3...

Right on the dyno DONE by 4800rpm's. 455, 7K3 heads, mildly ported with a single plane intake and 850 DP carb.

Not my engine by I witnessed the dyno pulls on it. Can't remember the exact...
Forum: Electrical Tech 12-21-2023, 10:53 PM
Replies: 2
Views: 1,276
Posted By TheSilverBuick
Check your reverse light circuit for a short....

Check your reverse light circuit for a short. From neutral safety switch to tail panel.
Forum: Pontiac - Street 12-20-2023, 01:35 PM
Replies: 17
Views: 4,303
Posted By napster
Matman, Just putting this information out...

Matman,

Just putting this information out there and my opinion.

I have a 1970 T/A with a 433CID engine with RAIV heads. The cam is a in the attachment. Engine uses RAIV exhaust manifolds with...
Forum: Pontiac - Street 12-20-2023, 07:30 AM
Replies: 17
Views: 4,303
Posted By steve25
With stock iron heads running a .550” lift hydro...

With stock iron heads running a .550” lift hydro roller you could make 420 Hp with a well thought out street 400 cid motor, take that same 400 short block and bolt on the D port E heads and then 490...
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