RE: compression

[VDPY33A@prodigy.com (MR PATRICK J MCMULLEN)]

Mike,

I do not know if a specification was ever published for that, but it 
would seem that on a rebuild that is broken in, you should expect to 
get 150-175 psi  I suppose there would be some differences for 
compression increases and cam shaft profiles.  But I have always been 
told that as long as the lowest reading is within 10% of the highest 
reading, you are just fine.  Of course all could read within 10 % and 
still only read 50 psi which would warrant a rebuild or new rings.

Pat in NC