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  #1  
Old 04-16-2021, 12:00 PM
65CatCoupe 65CatCoupe is offline
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Hey Jim thanks for sharing you knowledge and there is no doubt this manifold is way cool and would be a great race piece. Do you happen to have a experience with it coupled to the more street oriented 455/RAIV type combo? I'm guessing that being single plane with very short runners its not great out of the hole.

  #2  
Old 04-14-2021, 08:15 PM
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tempest1964 tempest1964 is offline
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Well, I’m just gonna say it. That looks badass!

  #3  
Old 04-14-2021, 08:17 PM
tom s tom s is offline
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wont fit under the hood of a 62 without some work.The rear carbs fits as is but tight with thses carbs and ACs.Im going to cut 1/4 inch off the rear AC and a 1/2 off the front AC.If that does not work im going to cut some of the manifold top.Car drives as good as it did with the 859 and the 625 carbs.If 4in top AFBs are used im real sure it wont fit without cutting the manifold top and maybe some off the base of the SD ACs.My choice for carbs would be single 4 409 chevys.WAY cheaper than max wedge and real SD pontiac NASCAR carbs.

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Old 04-14-2021, 09:10 PM
61-63 61-63 is offline
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If you pull the spacers out from under the carbs and put the trans am screens on top of them would it not fit?

Where did you get the long spring that goes between the two carbs do you remember?

  #5  
Old 04-15-2021, 10:13 AM
mgarblik mgarblik is offline
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Manifold looks great on the engine!! Very hard to see from the single picture. Are the carburetors sitting on a 1/2"-3/4" plastic spacer? Could this be removed if that's the case? The air filters are not familiar to me. What is their height compared to the SD/Corvette factory looking louvered ones? Thanks for the updates.

  #6  
Old 04-16-2021, 03:53 PM
wbnapier wbnapier is offline
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3D Print your custom velocity stacks. Tack screens to them.

You're on a roll with this 3D printing, might as well go all the way.

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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"
  #7  
Old 04-16-2021, 05:42 PM
tom s tom s is offline
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Some pics of options.Tom
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  #8  
Old 04-16-2021, 05:46 PM
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misterp266 misterp266 is offline
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Had to turn them, thanks Tom.
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  #9  
Old 04-16-2021, 05:54 PM
mgarblik mgarblik is offline
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One way or another I will get this cool intake with some sort of air cleaner under that hood! Just looking for the easiest way to make it happen. Appreciate all the efforts from Tom and Jim and others. Can't wait for my own version to play with and make fit. Keep the momentum going!!

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  #10  
Old 04-15-2021, 10:12 AM
tom s tom s is offline
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John,no spacers!Double gaskets under the front carb and 1/4 inch gasket under the rear,needed to have the carb secondary linkage clear a bolt on the intake.Tom

  #11  
Old 04-15-2021, 10:44 AM
tom s tom s is offline
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Mike,as I have said the early carbs are 1/2 in taller than the big top carbs so your giving up 1/2 in using them.There are no spacers under my carbs.John has a point about the 69 TA air screens.I found those ACs on ebay under marine.My body shop guy took my ACs yesterday to cut 1/2 in off the front and 1/4in off the back.As said,no spacers under the carbs.I think a 63 car has more room than the 62 as I remember running one on it with the TA screens.Tom

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  #12  
Old 04-15-2021, 03:54 PM
61-63 61-63 is offline
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I'm going to put a big mouth top on my set, the TA air screens, and tig weld a stainless steel wire form to fit under them and put K&N filter fabric between the screens and wire forms to serve as a filter element. The screens provide no real filter function as you can tell by looking down into the carbs in this picture.
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  #13  
Old 04-15-2021, 06:04 PM
tom s tom s is offline
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Pics of SD carbs and SD ACs in relationship to my ACs with 1/2 and 1/4 inch cut off.Could not find my TA screen to compare.Tom
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  #14  
Old 04-15-2021, 06:07 PM
tom s tom s is offline
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well that sucks,1in and 1 1/4 diff.Tom

  #15  
Old 04-15-2021, 09:49 PM
mgarblik mgarblik is offline
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So I guess the question still is : will the bathtub intake fit under a flat hooded 62 full size with the SD air cleaners or any known air cleaner? Crumpled tin foil test? Thanks

  #16  
Old 04-15-2021, 10:17 PM
61-63 61-63 is offline
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This bathtub and car belonged to John Chonacas. The car is a '63 Catalina and the hood had one of the Ford truck scoops on it. John had a pair of the sd Corvette air cleaners on the carbs that had had the small openings cut off and larger diameter openings bonded to the air cleaners with the panel bonding compound, so the air cleaners would mount on the big top air horns. When John closed the hood on the set the hole cut in the hood for the scoop caught under the top fin of the front air cleaner. He couldn't figure out a way to get the air cleaner unstuck and ended up destroying that air cleaner in the process of getting the hood back open. You will notice spacers under the carbs. Had those not been there would the setup have fit? Or had the hole for the scoop been cut just a tad forward would the front air cleaner
have cleared? DK to both questions. We do know that the TA screens clear because several cars have them. I have a number of pictures of '63 Tempest and LeMans cars with bathtubs that have the screens on them so we know they also fit. DK on the sd air cleaners though.
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  #17  
Old 04-15-2021, 10:23 PM
tom s tom s is offline
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The ACs I have and had cut down a little fit under my stock 62 hood with the 5 in top AFBs.No way SD ACs will fit on the4in top carbs.I doubt even if you cut 1/2 inch off the intake top.I have done all the tests.Tom

  #18  
Old 04-15-2021, 10:33 PM
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And yes I have done many tin foil tests!Tom

  #19  
Old 04-16-2021, 09:34 AM
mgarblik mgarblik is offline
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OK, That is the information I needed. Looks like I need to find a nice 62 hood and a metal hood scoop if I want to run this intake. Huge extra expense, may be a show stopper. Damn.

  #20  
Old 04-16-2021, 09:53 AM
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Region Warrior Region Warrior is offline
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Those filters got to be most restrictive ever seen. Worse then 3x2s.
Has to really f up air flow.
I would make a large bottom pan to fit over both carbs and use larger diameter filters.
Just say'n...

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