Long story short, buying a rb25 s15 - had a full mechanical inspection done and got the following results from the comp test: #1 – 180 psi #2 – 170 psi #3 – 135 psi #4 – 145 psi #5 – 120 psi (145 psi wet) #6 – 180 psi Those numbers to me feel off, i didn't even think they got compression levels so high. Naturally, the owners then freaked out and taken it to another place where the comp test came back 140 psi across all 6 cylinders.. So now I'm chasing a 3rd compression test and will also be forking out for a leak down test as well. So my question is 140 across the 6 an acceptable number to work with (apparently a 90k motor out of an auto stagea)? especially when I'm spending upwards of 20k on this car. Thanks for your opinion.