400 BB Mopar dyno test

This is great. I've always thought the 400 was a very under-rated engine.

Looks like a little milling here and a little more there really makes a difference.

I was going to approach the compression issue from a different angle- better pistons, but perhaps milling would be more cost effective, as it could be done locally.

I agree that high end or roller rockers are the third biggest mistake I've seen made on street engines versus the return on investment. 1 being over-carburation and 2 being a high-stall converter that doesn't match the cam and gears.