max compression on pump gas\steel cylinder head\241 @ 50 cam

I have a friend running 87 octane with 11.2 comp by means of 915 iron closed chamber heads and a 300* solid roller in a 451 low deck, the cars runs 4.10's 4 spd and has about/around 34* total timing and mid 20's initial, revs to 7000 rpm

11.2 on 87 pump spew

I will ask what the @ .050 is.

but this will do nothing to your build with open chamber heads

180-185 psi dynamic is it with open chamber sb heads and pump 91, unless you have lots of gear. Ask crackedback this.
but who knows..
you could easily have the chambers spayed with iron and milled flat, then shape a heart, it's been done.

is that piston a quench dome or just a d cup or?