I have a stock 250, with HEI ignition, T5 trans, 3.73:1 rear end. I would like to take it up a notch in performance. I am considering the Stovebolt cast iron headers. Has anyone used just one of T. Langdon's Holley/Weber 2bbl's with an Offenhauser (5416) 4 bbl manifold? If so how does it perform and what adapter did you use? Any input would be much appreciated. Also how does a progressive 2bbl carb work with respect to the second barrel?
Is it controlled by linkage or vacuum?
Ken

Last edited by El Viejo; 04/29/08 06:04 PM.