[wheelbender6]

"As it's pretty hard to find, look at the Ford 215/223. A lot of aftermarket speed parts available for that series, though more for the 223"

I hopped up a Dodge slant six one time with a small 4 bbl, intake and headers. It ran really well with a 3 speed manual. I later added a 4 speed manual, but it never worked very well. Good ole days.