for a 2000 maxima, non intercooled, walbro in tank, about 6psi gated and stock injectors, what ratio FMU would you recommend? Also, you wouldn't have to touch/mess with the stock fuel pressure regulator on the inlet side of the fuel rail correct?

 

IMO, 8.1 Vortech FMU w/ no need to touch the FPR.

 

Thank you very much I was suggested 10:1 by vortech, I think ill get the 10:1 installed because I'd rather be rich to start than too lean, and ill buy the 8:1 kit as well.