Check out the web site for these heads!!
They post some very very impressive dyno numbers. IT looks like the higher you rev them the more power they make. There never seems to be a decline. Ex 350 with preformer RPM 750 holley and a small hyd roller cam 225* duration and .514 lift made over 668hp @ 7500 rpm and over 500lbs of torque from 3000-7000 rpm. Here is a claim from their website "The unique valve gear arrangement made possible by Arao Performance's patented head design (US Patent #5,007,387) allows rev's to over 9000 RPM without use of exotic valve train parts or freakish valve spring loadings"
9000 Rpm ?? wow !!! you better have a strong bottom end for that!!!
69 Camaro RS, 383ci,10.5-1 AFR 195's ported, Comp 286HR, 4340 forged Crank & Rods, JE Pistons, RPM Airgap, Holley 750 HP carb, 350 turbo w/ shift kit, 3000 Coan, Be cool, caltracs,12bolt 355 eaton posi..Best E.T. 12.22 @ 112
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