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#1
05-08-2026, 10:12 PM
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Intake Gasket question...
I'm putting the intake back on my 70 Formula 400, wondered about these blockoff plates? I can't remember if the other gaskets had them when I took them off. The car is all stock. Quadrajet carb, stock air cleaner... I'm assuming that those dont get used on a stock engine, but I thought I'd ask
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#2
05-09-2026, 06:14 AM
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You only need them if you want to block off the exhaust crossover. The choke won't work then. Used for racing mainly. So, not really needed for street use.
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#3
05-09-2026, 07:11 AM
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That's what I thought. Thanks for the response. I also assume that circle will be enough to activate the choke properly? Seems odd to me, even if you don't use the block off plate the gasket itself still blocks off alot of that area of the intake
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