hi mate im useing megasquirt on my zt the problem you have is (i think) that the injectors you have are low inpeadence its eayser to use high ones as its eayser to work wit megasquirt. as for injectord get on da net and look for some sarb turbo injectors they flow to 356cc/min good for a limit of 300bhp they are high impeadence and give a good spray patten for idal ect let me no how you get on thay are red btw lol good luck