Super 6 conversion

I have never done a 2bbl conversion with out a bunch of engine mods so, I can't tell you how much it helps alone...the best bolt on mods I have made on a slant is the HEI conversion and distributor recurve. Over at the .org people have done a lot stuff with 1bbl. Usually when I do the 2bbl thing, I use a motorcraft 2100 or a holley 350.

The other things mentioned in the previous posts(especially rear end ratio) are the often forgotten mods that make ALL the difference.

For example: I had a 59 F100 that I THOUGHT had 4:10 rear end in it. Had the original 223/3 speed manual in it, sucked to drive...put a 289/3 speed into it, still sucked. Swapped in a 360/904, thought I had it...still sucked. Checked the rear end again...it was 3:00 ratio. Switched to a 3:55 rear with the 360 and made a new truck out of it. If I had put 3:73 or better with the original 6, probably never would have taken it out. Just to illustrate how important rear end ratio is.

And YES I should have checked the rear way before I did all the engine work. I was young and dumb, and like engines.

sb