Help needed engine harness

Never mind. I’m figuring it out. Plug in play. Yeah right, plug in play in my ***.
I installed mine with all of the factory harnesses ripped out of the car..I installed the under dash harness with the dash out of the car and all factory wiring removed from it..I laid the new harness in place and it was fairly simple to see where it all plugged up..The dash is a rallye cluster dash..Same thing with under the hood and the under hood forward harnesses..I just plugged it in to the firewall block and routed everything..Im going to have to extend a couple of wires as my 71 Demon is a 340 car and I installed a 440 in it and a couple of wires are a bit short..I am using a M&H harness..I don't know if there is any differences between the Evans and the M&H but the M&H went in fairly easy..The one thing about the M&H is price as I spent around 600 dollars just for the under dash harness..Ive never priced the Evans..But just keep chipping away at it..Youll get it figured out.