[Gearhead999]

I'd stick with the 351, change the heads and headers for clearance.

Go to a Hyd. roller cam myself. You can get alot of power from them, with out all the noise and adjustments.

If you choose "B"....well to equal the power you'll have to stroke the 302. Still have to change the heads, etc. Seems easier to do "A" and cheaper too.