470 runs out of steam at 5100 rpm

breakstuff said

Id like to see the time slip. 60 foot, and 1/8 mile et and mph. 106 to 108 should put you mid 12's unless you are getting a lot of tire slip on the launch throwing your mph high. How heavy is the car?

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I stand corrected! 106-108 was my last 1/4 mile run last yr! (This was before head and cam change, I replaced old iron 546 heads with the ProComp aluminum heads.) Which was 12.6, but I have calculated my times from this yr on 1/8 mile, which was 8.4 at 83mph.