Electrical "HELP" MFI, Fuel Relay & Pump, Coil, Fuse number 12

Need some help with my 1991 GTO
Fuel tank was filthy with stale fuel and the pump not working, flushed and cleaned the tank, refitted and installed a new 524 lph pump
ran it for a hour, took it for a drive the next day, drove for about 30 kms, then blew my clutch master cylinder ( found that I'd put a hole in the piston )
turned off while thinking how i was going to get home, went to start in gear fuel pump not working,
tilt tray home, thought might've been fuel pump relay, after arrival
worked out fuse number 12 was blowing when ignition turned on reds,
Did the ******* globe trick plugging in a globe into the fuse slot
unplugged fuel pump, turned on to reds each time, then mfi, fuel pump relay and when i unplugged coil the light went out
disconnected each coil pack one by one found the coil closest to the firewall triggering
ordered a new coil pack fitted today and exactly the same thing happens to the globe at fuse,
I removed the pump at one point and checked it was working okay out of tank, noticed the joining plug in tank had fuel around, there is a rubber grommet but still getting wet
Im not sure if matters,
It wasn't doing it before but with the coil pack unplugged, the MFI is repetitively clicking with the fuel pump plugged in,
disconnected the fuel pump, MFI clicks once on reds
I think maybe I'm dealing with 2 problems?
What do you think my chances are getting a new coil pack which is faulty
I might go swap coil packs around see if makes a difference
Clutch is all working now
Going to test MFI relay today,
Thank you for your help :)