Rochester2bbl and hei combo question

[mateo1279]

That makes sence. I bought a unit from a friend that was supposed to have already been tuned to improve performace.... I did feel a pretty good increase in throttle responce after the change. My enigine is kinda restricted, so I don't think I got much of a power boost, if any. I have a new intake manifold and carb I plan on bolting on in the next few months.... That should gimme a nice little boost ( going from stock 2bbl to a holley 600 cfm 4bbl)

Thanks for the tips

-Matt