Not Ranked
Sounds awesome!!! I have 11.4 compression in my 428FE with edlebrock heads..has 614 HP and no problems with detonation. I have a msd ignition retarder dial in the cockpit just in case but I run Chevron or Shell 91+ gas with a bottle of octaine boost or, when I can 5 gal. of av or race gas. On the few occasions I have had only the 91+ I haven't had any problems.
Tom
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