Hi,
I have a Mitsubishi galant vr4 1990 model with a M4 ecu, can anyone help me out with a base tune or run in tune? I have just rebuilt the engine and the current tune is not suited. The engine is a 4g63T with standard crank and pistons but running a port/polish head with 1mm oversize valves and stage 3 cams. It also has a walbro 255 fuel pump and 450cc injectors.
Thanks