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The

Valve

Adjustments

Off!

You're probably pumping up the lifters and killing the compression after a short run time. It's a common problem with new lifters. Just take the obvious slack out of the lifters without bothering to perform some sort of voodoo magic with a certain number of turns of preload until you have made a cam break in run. Then go back with the engine at normal operating temperature and do a hydraulic lifter adjustment procedure.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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