Edelbrock Rpm heads on 360

It's not the cylinder pressure
it's the burn pattern
it's too far from the spark plug to the intake side of the chamber
dish under the pug and valves and tight quench on the intake side is what works
not saying that if you are racing with race gas you can't make it work at over the torque peak rpm
it's the area under and around the torque peak that you get problems
boats, trucks, motorhomes, towing are worse but street can still be bad if you lug it or load it up
THERE IS NO SAFE COMPRESSION WITH OPEN CHAMBER HEADS OR PISTONS DOWN THE HOLE