I just bought a 1991 acura and ran a compression check on it. It was 130 PSI across the board. But i need to know what this means. I cant find any specs on compression readings. Someone please help me!!!! Thanks

it's good. Roughly 15psi is 1 atmosphere, multiply by your com. ratio, and thats the reading you should get.

That mean's your at about 9:1, that's about right.

bull. my 12:1 gets 250+.

Most gsrs make 200+ with 10:1 compresison