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these heads are new on car 3 weeks then i put a stage motor in, cost 1300 must sell make a fair offer manmotorsports@yahoo

two fairly new, 2 weeks on car, changed to stage heads need to sell these cost new 1400 must sell make offer that is fair. these heads are iron built to stay down

I am installing a ams controller500 I have a twin turbo gn with atr gates to leave on 10 psi can my spring be 13 psi, the controller setting is plus spring pressure do i have to put in like 6lb springs to bleed the gate to acheive 10lbs to stage, my mechanical brain tells me this is what i need...