i have been trying to get my MSnS to work for while and i am givin up tell winter when i can put her down for a few months.

ok i have some 750cc injectors and i would like to run thos because the stock ones run lean after 1st gear. i have a 1:1 and walbro, also i have zeitronix will i beable to run with this set up?

thanks

what do i need to run 750cc?

It isn't going to be possible to run the 750's on the stock ecu. For one they are more than likely a low impedance injector requiring resistor pack but even with resistor packs you are going to be dumping in tons of fuel because the ecu thinks it is still running the stock 235cc's so the 750's are going to be open for an excessive amount of time. Your best bet is to throw the stock injectors back in and get yourself a FMU.