phatcat4701

Hi I have a R31 skyline. I recently replaced the RB20 engine with a RB30e. Changed to a Gotech MFI-X ecu. It had trouble with the exhaust valves as they burnt up and bent. I bought a replacement set of valves, replaced the head gasket and various other seals. After that, the car would not start. The motor just turns but won't idle. There's spark, there's fuel delivery and the motor just until the battery runs out. Please help