On our old Iron Megablock we used 70 ft/lb with 572-13 heads and 1/2 inch/20 studs. We've used the same heads, hardware and torque setting on our KB block but we keep going thru head gaskets, always in the same place. Maybe we need to increase the torque setting?  Sorry to hijack the thread.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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