Ignition system or fuel system causing no start

I have recently pieced back together my car (SVT model) after it dropped a rod in February. I replaced the entire engine assembly with one that was in a wrecked SVT. I checked the compression before I bought it from this guy and it was good. He told me that the engine had 30,000 miles and showed me the odometer to prove it.
On to my issue, I go to start this thing up and at first it backfires badly. Turns out I am an idiot and flip flopped the spark plug wires for five and six, so I switch those around. I go to start it up again and I cannot hear the fuel pump. I go at it with a test light and there is no power at the orange/violet wire going into the fuel pump assembly. I know is the power so I check the relay and fuse. Both are fine. I have been using the hot wire with a fuse to run the starter and it has been building pressure at the relief valve.