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I would like to raise my compression, Or should I just buy Edelbrock heads? If I go the Edelbrock rout, which heads would give me better performance without raising the compression over 10:1?

Absolutely get the eddies rather than the antiquated 906's (even if pro worked). With the closed chambers I still dont think you'll be in any danger of pinging with pump gas due to the aluminum wicking off the heat

live every 24 hour block of time like it's your last day on earth