No spark 72 c10 with hei

[WIDESIDE72]

A few years ago I installed a skip white hei and a new engine harness from brothers with the hei mod already done in my 350 and it started fine a few times. Then we tore the truck apart for paint. I recently reinstalled everything. Last week I started the truck for the first time after paint and everything worked OK. I drove the truck down to my barn and it was idling while I added trams fluid. It died and would t start. Pulled a plug wire and installed a spark checker inline, no fire. I checked the power wire at the dist, no power. I ran a jumper from the battery to the dist and the truck fired up (?) I am going to pull the harness from the dist block next weekend and check it as I can't figure out why I'm not getting power to the dist with a new harness. I checked and it hasn't gotten pinched, etc that I can see. Does anyone have any ideas?
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