Quote:

Go get yourself a leakdown tester and test each cyl. Leakage should be 15 percent or less. Remove the oil cap and listen for blow by. The cyl. with the most leakage by the rings is your oil burner. If you can hear air out the tail pipe you have a bad exh. valve, If you hear air out of the carb you have a bad int. valve.



Not trying to high-jack the thread here but you mentioned that if you hear air out of the carb it's a bad intake valve. Latley my 600 edelbrock carb has been whistling and the heads are pretty
well worn. Could a bad intake valve be the cause of this???