Quick question?
Has anyone ever had this problem? I just upgraded my fuel/air management system with a 255 walbro, 370cc inj, and a Z32 MAF. Running a JWT ECU programmed for 9.5:1 ratio, 95-99 SE-R, Z32, Turbo, and Pop Charger. When I WOT in neutral, it feels like the fuel cuts off on the low end or doesn't want to rev freely until it hits bout 3k rpm, then shoots all the way to redline like normal. I just need some inputs on what could be the cause before going out to by a Nismo FPR. On Vadim's roller rocker build he also mentioned that when he did the 255 walbro pump upgrade it didn't change his fuel pressure all that much and the stock FPR did fine. Open for suggestions. Thanks in advance.