Quote Originally Posted by jerry clayton View Post
You originally said open shorty headers----explain that ---- if you are trying to run a shorty style header with no pipe on it, you will find that it won't want to accerate off idle and other erraric symothes--------

Block hugger headers installed on engine open at the collectors, no exhaust other than that.

Is your manifold/ gasket/ carb base compatible???????

edlebrock performer intake, fel pro gaskets, used quadrajet carb,

many times I have found older gm type advance mechanisms sticky a nd won'r advance /retard correctly every time giving erratic behavior to engine--
will check into the vacuum advance...