The 235 ft-lbs bolt torque and slight press-fit that Mike mentioned is how we could run a 14-71 blower at 42 lbs boost without a front crank support. We worked a deal with RCD to get Ford crank hubs prior to their final hone (which would have made them loose on the Pontiac nose).
Eric
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"Everybody has a plan until they get punched in the mouth" noted philosopher Mike Tyson
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