tryin to break in new engine, ruff idle

Big torker , big cam , small carb , heads and pistons , you have a bunch of mismatched parts . If you get it running it will most likely have no bottom end , top end will be limited by carb . I had a torker years ago and it bogged below 2500 then it let loose but died out at 5200 , not enough cam or heads, changed it over to a ld 340 and car improved big time . More power from 1200 rpm up , car was a lot more fun to drive .
Best get a new carb and intake , it will run really well . Carb is probably your immediate problem , not rebuilt properly . After that should go well