Re: Carbuartor Rebuild

Posted by Mike On 2011/6/29 8:02:10

Don't Jump the gun yet!

I'm pretty sure my 4bbl had a hole between the bores (not into the hot spot area, but between each venturi) and my spare 2bbl is in the garage with the carb off, i'll go check, but i think it did too, and it's off a 50. If the hole is between the bores, it'd be to let the cylinders pull from both venturis during high rpm runs. Some factory V8 dual plane manifolds do it, and others have a notch put in to do the same thing. These are dual plane manifolds i believe.

I had both manifold sets apart for blasting and a good cleaning, and no exhaust blow through holes were found.

Now if the hole was in the side of the bore like ozstatman's pics, then yes, the exhaust gases get up there.

I believe it's rough because there's no easy way to get in there and drill a hole...must be casting flash.