Hard Starting Hot Big Block

Ricks70Duster340 said

"Cranks like a dead battery drops to 6-8v and is very slow to crank and does not start." Voltage drop like that still points to bad connections. You changed the starters, same issue. You tried a jumpbox up front but where did you attach the cables to? Directly to the starter & bellhousing?

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To the Posts on the front fender. Tried to go right to the starter when I had it on the lift but couldn't get the clamps in there without touching the block. I have post relocations on the starter. The solid brass or copper ones like Mancini sells. Bought it from the guy that was making them on ForBBodies only.