sbc 355

[rocketracer380]

l2256 speed pros with dart 230's 49cc for nos

[F-BIRD'88]

Increase the top ring end gap appropriately based on how big of shot is planned.

[rustbucket79]

You will have valve to piston issues with that combo, your heads are technically a 21.5 degree head rather than stock 23 degree.

[BlitzA64]

Those pistons would need valve notch machining, Mahle has a flat top piston to work with those heads, good stuff. I would also go with the 215 head on a 355