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Old 02-09-2013, 01:21 PM
pilona42 pilona42 is offline
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Originally Posted by F-BIRD'88 View Post
You are likely hearing it leak past the piston rings. If the cranking compression is 150 its good.

On a stock OEM cam the intake is not fully closed until 40deg ABDC +/- The piston is approx 1/3 past BDC

The bigger the cam the later the intake closes (generally)

Did you verify accurate timing tab TDC location, using a piston stop to find true TDC?
often a issue with non stock aftermarket parts. inaccurate timing setting is the result.

what cam?
It is a stock cam from the crate motor short block.
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