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pretty consistent mph. is that about a 600 HP combo in there?

Nah, one of the 700+ HP motors My old 518 low deck pump gas(10.8 to 1 comp. ratio) short block with a set of Indy SR heads with M.W. intake ports, 400-1 intake and a Holley 4781-7 carb. It is sold, hopefully so I may not get to do any tuning on it in my car, I did record one run on my LM1 but I haven't down loaded it yet so I'm not sure how it was on the jetting. The weather was not good, DA around 2700 ft., not good and not horrible



i hope you get time to fix it before the new owner gets it. maybe a plug wire fell off or something simple like that. that would explain the low mph.

machine shop owner and engine builder