Fuel pump problem ?

[Yellowfever138]

Hi - I have a dodge ram srt10 which has never skipped a beat until the other day - as I'm not auto electrically inclined I'm hoping some of you guys might have a few pointers
Engine is modified and is running a paxton blower so has triple walbro in-tank fuel pumps.
Tootling along at 30mph with no load on engine - then nothing no coughing or spluttering just like turning ignition off.
Went to turn engine over -cranking but not firing.
One of the fused links from the pumps had blown.
Replaced fuse and it blew again
I also have a fuel pressure gauge which normally sits at around 43psi before cranking - now after hearing pumps prime the pressure starts dropping off.
Any pointers or how to approach finding fault would be greatly appreciated. Thanks.

[Yellowfever138]

Thanks for the info guys - pumps were already wired when I bought vehicle so cant vouch for wiring but ive just been underneath to check for any physical damage to the loom and it all checks out ok.
Sounds like next job is dropping the tank to access those pumps - thanks again.