The OD tranny is the way to go but I think you are expecting too much speed out of a 216. My 248 tops out around 75 on flat ground with no wind. I'd recommend a disc brake upgrade with the higher speeds.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.