340 528. Purple cam question

...was that with stock iron heads?
Yes bone stock 2.02/1.60's, just a lap in of the valves...I used fel-pro h/gaskets so comp was probably only mid to highish 9's.
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At 101 MPH you should have been (or should say you were making enough HP) to run high 12's. That puts you ~ 290 HP
At 108 MPH you should have been 12 teens or so. At the same weight you had ~ 340 HP.

MPH is horsepower. ET is hook.

Yes I know mph is hp and ET is hook, and my car didn't hook like a stocker to get your no's. it was on stock 340 l/springs with a snubber and long shocks, with worn fronts thats all. I guess you use the Moroso slide rule whereas I have always used Wallace which has been very accurate for my and others cars I've inputted that have actually gone down the track here at SP.
12 teens is 110mph@390fwhp
High 12's are 104@330fwhp.

To give you another example my 3000lb 446ci Cuda ran [email protected] = 600fwhp with a 1.39 60 which was more or less spot on with the Wallace calc....again not stocker 60's. We do have a '69 Chevelle A/SAA car that runs those no's 9.90's@131 and some change with 1.28 60's. I think the Wallace software was based on cars that left reasonable but nothing spectacular as if you input a stockers ET/mph it kinda all goes wrong, very light cars also messes it up some.