Cylinder Head Pressure Question

[BLK306]

Do you think a naturally asspirated 12:1 sbf would make as much, more, or less cylinder head pressure then say a stock compresstion motor with a 150-200 shot on it?

I just picked up a car with a 12:1 331 short block in it and was trying to figure out how much head gasket I need.

[Blackpony]

1011-1 felpro

[greenbullitt]

screw a 1011-1...9333 pt1

[BLK306]

I thought about the 9333pt1. Having never ran a car with more than 10:1 compression I was not sure if I would have problems with the $20 head gaskets. However, I know the turbo guys have been known to run them.

[Mach1]

x234 for 9333PT1