27* is a lot of timing for 30psi . Didnt they move the plug over to in front of the exhaust valve an give this head a heart shaped chamber? Thats a real efficient chamber . I have the new Edelbrock head with all that done to it and @30psi it only wants 18*. Something to try would be taking some timing out and richening it up a bit more . What are the egt's at 30 psi with 27*?
Quote:
Originally Posted by RAIV-Z
Let me clarify the lean comment. It was lean at idle after starting it up after sitting for about a week.
AFR during a run was 11.9 to 12.2
Timing at 30lb was peak 27 degrees
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08-30-2023, 06:12 AM
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