95 4.3 w engine miss

OK, i got this 1995 s10 4.3 w it has a miss in the engine around 1200 rpms 2200 rpm's, it has new cap rotor , new delco plug's and wires. iv had 5 coils on it some used 3 was new, i cant get this miss out, start IT up cold it dont miss, run it till its warm misses then, if i jigel the wiring harness some why its warm some of the miss comes out . on every coil iv had it jumped spark side to side IN THE DARK. I DID A GM pressur injector clean, MY brother run did a computer scan with a snap on computer scaner, miss fire but did not tell wich one IT WAS. Its a OBDI COMPUTER, OBDII PLUG IN, IT HAD no bleed off on pressur injector clean at all

OK, i got this 1995 s10 4.3 w it has a miss in the engine around 1200 rpms 2200 rpm's, it has new cap rotor , new delco plug's and wires. iv had 5 coils on it some used 3 was new, i cant get this miss out, start IT up cold it dont miss, run it till its warm misses then, if i jigel the wiring harness some why its warm some of the miss comes out . on every coil iv had it jumped spark side to side IN THE DARK. I DID A GM pressur injector clean, MY brother run did a computer scan with a snap on computer scaner, miss fire but did not tell wich one IT WAS. Its a OBDI COMPUTER, OBDII PLUG IN, IT HAD no bleed off on pressur injector clean at all

Flat top or reg dist?
Computer on fender or under gove box?
TBI or single intake injector or multiport top wired injetors?
Any codes or check engine lights?
What is fuel pressure reading?

Did you install delco cap and rotor and a good set of wires?

If spark jump out of coil you have bad wires or cap and rotor or grounded spark plug.

What wire makes the miss change?
Wiring is broken or lose or shorted or bad if it changes miss.