Posted by Harvey on July 10, 1998 at 10:34:18:
In Reply to: Re: More HP in a 250 ? posted by T.L. on July 10, 1998 at 01:57:27:
The 250 has an integral intake manifold,it's part of the head.There is little you can do about intake on a budget.Pony carburetors may be able to improve upon the 1bbl carb.They say that the pre-67 had a larger venturi.
www.cybervillage.com/ponycarburetor/faq.htm