I have the Phase 1 T4 with 312cc injectors,before i look into getting any more Injectors i read on a few Fiat forums that to get more fuel for more power they change the fuel regs for bigger ones.I think i have the std 3bar Reg ive not looked yet but i use a 3.8 bar or a 4 bar reg for more fuel.Stock fuel pump is good for 450ish bhp anyway from what ive been reading.
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