HELP!! Wont start fo break-in!

I used welders cable also, and I ran a ground of the same gauge to the engine.

Are you using 1 cable or two? Are you grounding the engine to the battery ?

Measure your voltage at the starter both during cranking and not.
If there is too much voltage drop during cranking, then you need more cable or a better connection somewhere.

I have the engine grounded to the right frame rail with 4 GA fine strand cable. The Battery is grounded to the right frame rail in the the rear with the Summit Supplied 1 GA cable (I have subframe connectors welded in, so there should be continuity).

I haven't measured voltage drop at the starter during cranking yet (didn't want to crank too much before break-in). Now that I got the initial break-in done, I'll try that.