yeah i might have a cam timing problem after i installed the RENNTECH cams on it

i have re-done the test today with the throttle plates open and the numbers are a little higher

1-105psi
2-100psi
3-120psi
4-120psi
5-100psi
6-120psi

So what do you think Steve? does the numbers looks OK? and how much diff could the cam timing makes?

the guage that i use is a new guage, with a PVC hose..

so what you are saying is that as long as the pressure variation between each cyclinder is not too diff, then i should be ok (in terms of doing a compression test.) then what other ways i can use to determin if my engine is losing compression??

the engine got about 180k miles on it.

Thanks