jojo4711
Well-Known Member
- Thread starter
- #1
What do I need to upgrade to go to a smaller pulley on my 19 GT? It comes with the 88mm pulley, boost pump, triple heat exchanger with dual fans and 56lb injectors. Do I have to upgrade to E85? That would mean a return style fuel system and bigger injections at least from what I can tell. At what point to I need new driveshaft, built trans and axles?
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