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Old 04-01-2012, 02:11 AM
backyardracer backyardracer is offline
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not one of those heads had the 1.94 intake valve installed and i have both sets i have the 416 and the 601 mine both came with the 1.84 valves they came off a ho 305 motor yes they only put out 190hp and like 240tq stock any how the only differences i really see in them would have been the valve shrouding but they have been let open a bit to help deshroud the intake valve every set of ported 416 and 601 heads with the 1.94in valve put in i have seen flow tested flowed around 225-240cfm at .500 look up F-BIRD'88 ported heads and mine look very similar to his i know there is know way to know for sure what mine flow but i would say no less than 220 for sure

Last edited by backyardracer; 04-01-2012 at 02:25 AM.
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