We raised the compression of the engine (we machined the head by 1.3 mm), but I still got a question. Does it worth changing the ECU? The car has it standard N4B ECU, but I'm told the N4A (the high comp. Pinto EFI) has a different one. I have got that ECU aswell, but I'm not sure whether it's worth changing the wires, etc...
What do you think? Would it make any difference at all?