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Late 99' complete 7.3 motor 87k miles

dsberman94

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No. Stock valve springs and pushrods are not happy when your pushing close to 40psi of boost at or above 3800rpm... hence the reason I bent 8 pushrods and broke a rocker...

live life full throttle

Ahh. Makes sense. Didn't realize/remember that was going on.
 

Addicted4

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I've done many hot and cold comp tests and they don't change much, 10% is the rule of thumb as far as having a balanced running engine, most good comp tests are 400 or above and seen several in the 450 range.

400+ is a great motor, but can have one at cylinder as low as 300 and still be balanced. My personal motor is 380-410 all the way across at 247k miles fwiw
 

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