The heads are 670. I don't have the paper work on all the items for it intel I pick up the motor. This is for a daily driver car I didn't want a large cam in it.The machine shop was to port the heads and intake HOW much was done I don't know yet. They did say the dyno was on the low side. Accoriding to the numbers on the block with the old factory heads it only produced 325 hp.
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