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Old May 16th, 2019, 03:02 PM
jerrspud jerrspud is offline
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Join Date: Apr 2019
Location: Boise Idaho
Truck: 1963 1500 custom cab
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Default Re: 305e Holley 500 swap question

Quote:
Originally Posted by bigblockv6 View Post
Yes when I had the 305 in my 68 I opened up the intake at the base to match the larger throttle bore of the Holley 500
Quote:
Originally Posted by James View Post
Personally I would make the everything (adapter and manifold) opening the same side as the carburetor throttle bores. I would also radius the lower edge of the manifold as it make the turn toward the runners. This is what I am planning on doing when I get around to do it (to many chores getting in my way).
So what would happen if I left it? I really don't like the idea of destroying the manifold because one day I may want to put the original carb back one. Would it just be less efficient or have running problems?
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Jerr
1963 305 V6 1500

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