New diz, lost torque

[norske]

Put a rebulit HEI in my 305 and lost some torque. I'm assuming it's timing (what else?). The block and heads were shaved, block zero decked, erson cam (stage or two below a stump), eldebrock 2101 intake, Roch. Qjet, headers. I didn't check the timing before the diz went out (stupid!) so don't know where it was set. Put it at 10 degrees BTDC and it was better, but not quite there. Before I do too much testing, thought I'd ask you guys if you knew a ballpark figure for this setup. Thanks in advance.