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Does the manifold have the same shape/design as the base of the carb? Sometimes those spread bore carbs need that thin steel adapter plate to seal properly at the base. Had this happen on a Weiand Manifold when a 1406 Edelbrock was installed on it. John.
Good question.... I'm trying to remember what the intake manifold looked like and the more I think about it, the more I seem to think that it might be a square bore.
Can you (or anyone else out there) confirm whether the original Carters back in '69 were square or spreadbore? If they were square then it sounds like that I do need that adapter...
Edit: to double-check, with the engine off I manually opened the throttle to WOT to see if I could detect any interference with the secondaries (I'd assume there could be interference if I had a spread-bore carb on a square-bore manifold), but I didn't notice any....
Last edited by David_Trimble; 03/18/12 03:02 PM.
