set of seriously ported gt-40's not gt-40p cylinder heads. comp cams valvesprings(.600) lift, manley 1.9 and 1.6 valves(new) and seals. fresh from the machine shop. no milling done to the heads. pedestal mount. heads went 7.4 in the 1/8 mile on motor with a mid .500 lift cam(c4 and 3200 stall) and 6.4 on the gas in the 1/8 mile. port work alone was $900. asking $700
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