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Best heads for 2001 500EFI?????

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Best heads for 2001 500EFI?????

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Old 01-11-2009, 03:55 PM
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Default Best heads for 2001 500EFI?????
What are the best heads for a 500EFI??? Already have bigger cams and the computer mapped..........
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Old 01-11-2009, 04:14 PM
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and when you put heads on it, the computer will most likely have to be remapped again
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Old 01-11-2009, 04:18 PM
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305AFR CNC'D to 315 IMO if you want aluminum.

If you want iron, maybe you could get some 308 Dart's cnc'd?
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Old 01-11-2009, 04:18 PM
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yeah i know.......
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Old 01-11-2009, 05:48 PM
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I have 325 AFR's on mine, run 87 and make 615 and 670 tq. change the throttle body, injectors and remap the comp.
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Old 12-21-2009, 12:44 PM
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Originally Posted by offshoredrillin
I have 325 AFR's on mine, run 87 and make 615 and 670 tq. change the throttle body, injectors and remap the comp.
What throttle body did you use?
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Old 12-24-2009, 03:23 PM
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Small runner full CNC AFR's - 9.8:1 is what I had planned for my old boat, but ended up trading up instead.
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Old 12-24-2009, 05:58 PM
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Originally Posted by Irishtornado
What throttle body did you use?
az speed and marine, mono blade, 1300 cfm.
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