D.O.A. Racing Engines is the ONLY porting option for a correctly ported cylinder head, or head pair, modified SPECIFICALLY for your usage based on cubic inch, rpms, and discipline of use. SuperFlow flow bench report included showing ALL UNDER PEAK LIFT numbers, from .100 to .550. Nobody else does this because these are the actual numbers that matter most.
Beware of other's "Stage" heads only flowed at an unachievable, irrelevant .600" !!!
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8502 S. 203 Rd Drive, Buckeye, Arizona, 85326Give us a call
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