Ed Hughes

I'm pretty sure there was a change going to 3.2. SSI's are 1 1/2" dia, IIRC. I'm running 1 3/4" B&B's which may've been big for the old 3.2 config, but it made great power on the dyno. I think 1 5/8" dia is optimum for a stock 3.2, just to flow the great displacement.