0 TDC
Knowing the year would really help. But 90% of the 350 TBI engine timing was 0 TDC.
Remove distributor cap Have assistant crank engine See if rotor moves while engine cranking
6 degrees before top dead center on the 305 TPI
Either a 305 TBI, 305 TPI or a 5.7 TPI
32 degrees
yes
No. Its engine code is LT1. The intake has much shorter runners than the tpi induction system.
intake plenum
Assuming you're referring to a 1988 IROC-Z, it could have either a 305 TBI, 305 TPI or a 350 TPI
The eight digit in the VIN # will tell you what engine you have. If you have the number 8 it is a 5.7 (350)
probably ignition control module failure