Guys I have tried searching but no real help.
I am trying to sort out a issue on my bro in laws r32, it won't rev past 3000rpm it coughs and splutters when it's warm. It has a z32, nistune, walbro pump, kkr 430 and a 14psi external gate and split fire coilpacka
There is no boost leak that I can find, spark plugs are gapped at .8 cleaned the afm, I don't have another afm so I can't try that. But it's really annoying me.
Also tends to stall when you come off the gas in neutral.
I am thinking of afm but don't have a z32 to try.
Any thoughts guys