Quote:
Originally Posted by geezer#99
Nothing wrong with 25 psi hot idle. You only need 7-10 per 1000 rpm.
When you changed lifters did you try to break the cam/lifters in again.
Sounds a lot like a cam getting wiped.
Big blocks are notorious for wiped cams.
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When I removed the lifters the cam looked fine. Also it is not noisy until you drive it and it warms up . When it got to 25psi It was even noisier.