M&A aluminum heads

what will the car run on DR's an high boost ? why spend all the money an time an not turn it up ?
 
with old motor with champion irons and 200r4 slipping trans ran 6.70's at 23# with a 1.45 60ft...now it had the aluminum champs and 350 trans and never ran it on dr's yet. thats the fastest so far on reg radial 7.15 at 1.68 60ft. then it broke the trans and rear end..
 
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