I sprayed some gas into the throttlebody and it didn’t start. I do have spark though

 

I also replaced Crank position sensor,
map sensor, ignition control module.

I replaced The battery because the old one did have a bad cell.

I checked the distributor and it appear to be OK.

I rotated the engine so that number one cylinder is at TDC, then checked the distributor and it is pointing to number one.

When I try to start the vehicle it appears to backfire through the intake.

 

My Chevrolet 2500 crank but seems to be not spark.

 

check fuses

 

Did you check voltage on pink wire at ignition coil module? Use a test light and check with engine cranking. That circuit is fuse protected, the fuse is in underhood fuse box, ign/inj fuse.