WHat compression should i have?

[OrangeMustangGt]

I havent able to find any compression specs for my car except the haynes which said i shouldent be below 100 psi.

I read 190 psi average.......

gt40p heads/crane 2031 cam

Anyone have any idea?

 

[blksn955.o]

You need to look for a drop from what other cyl. have. I want to say more than 8-10% would be bad and point out a bad cyl. but dont hold me to that.

like 190, 191, 189, 187, 190,188, 120, 192. The 120 has an issue.