48452, RE: How much boost are you running? Posted by BoostedGS, Dec-31-69 06:00 PM
If you still have stock internals in your 420A motor, you have 9.6:1 compression. I think just about everyone on the board that runs over 8psi has dropped their compression either voluntarily, or by blowing the engine. I think we have one or two members on the board that are going turbo with higher compression (10.5:1) but they are using stronger forged pistons/rods.
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