ive just put a new motor in my car and it wont start, im getting leading sparks but no trailing but i hear it should start, any other things that could go wrong, injectors are firing, fuel line has pressure. its a half bridge port, stock turbo with lt-8 ecu.





thanks

 

Should start without trailing, just run bad. You should talk to bdc, its gotta be hard to get the timing right on that thing...