Who Mfg the larger 500 EFI throttle body to gain 65 hp.
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THAT WOULD BE BOOSTPOWER USA PHONE#805-376-6077 THEY HAVE A COMPLETE HANDS ON HOW TO IN FAMILY AND PERFORMANCE BOATING JULY 2002 ISSUE THE KIT INCLUDES A LARGE MOUTH MONO BLADE THROTTLE BODY, MSD IGNITION PHENOLIC SPACERS WITH BOLTS AND REPROGRAMING OF YOUR OEM ECU LOOKS GOOD TO ME PUT IN PHONE CALL TO THEM BUT THEY DID NOT GET BACK TO ME WITH DETAILS LIKE PRICE BUT DOSEN'T LOOK VERY EXPENSIVE FOR 65 HP.