No ignition fire

[Sprint 18.5]

Just replace 4.3 with new long block and getting fuel with compression.
I triple checked everything, main harness plug coil wiring, ignition timing, bypassed lanyard, oil pressure sensor, neutral safety switch etc.
Coil was replace prior engine swap with ne plug wire, cap, rotor, thunderbolt ing module.
Seem like something simple in my face but not seeing it.
Any help would be greatly appreciated.
TY

 

[dubs283]

There is a thunderbolt ignition troubleshooting guide in the DIY sticky, top of forum page

 

[Bondo]

Just replace 4.3 with new long block and getting fuel with compression.
I triple checked everything, main harness plug coil wiring, ignition timing, bypassed lanyard, oil pressure sensor, neutral safety switch etc.
Coil was replace prior engine swap with ne plug wire, cap, rotor, thunderbolt ing module.
Seem like something simple in my face but not seeing it.
Any help would be greatly appreciated.
TY

Ayuh,..... Welcome Aboard,...... With the key in the "On" position, is there power at the coil's (+) terminal,..??

 

[Scott Danforth]

Is the dizzy installed 180 out?