16th Jan 2014, 02:24

Forget about the 307 and put in a fuel injected Corvette 350. If price is a concern, a TBI 350cid V8 will give you plenty of power boost cheap. Add a 345 or 373 rear end and you are good to go.

19th Jan 2014, 16:46

If you want to convert to Olds power, I'd say go with a 350 or 403. They are the same block as a 260 and 307, and offer plenty more power and torque. A stock Olds 350 puts out around 170hp and 275 lbs torque. The 403 puts out around 180hp and 320 lbs torque. They will fit in without extensive modification.