How many of you guys adjust cranking timing? Almost never have any issues with LS engines starting up super easy and this one is really giving me hell.
Fuel looks great, no codes, all sensors are correct, timing seemed to make the biggest difference in starting but still very difficult to get to fire off.
Spitters and backfires on cranking which makes me think timing but have tried everything +/- 30 deg from stock settings.
Any ideas are appreciated.
E67 ECU
80# injectors
D1 ProChager
408 cid