Horsepower question for the gear heads!

1969 '318'

The standard 1969 '318' had the Flat Top Pistons at {-.029"} down in the
hole {NHRA Specifications}.

That was for a Compression-Ratio of 9.2-1

Chopping another .029" off the Deck Block to get to .000".

"YIKES"

Taking another .029" off the Top will net you another {+.5} in
Compression Ratio, but there are better ways to 'Skin-A-Cat' here.