According to SA's 'New Hemi Builders Guide' They first tighten it up with an impact to get it alighned with the belt installed. Then the balancer is torqued to 45 ft lbs. This appears to be bad info! See Below!
Probably doesn't help much. That book is not really a builders guide. It list specs as far as dimensions go and compare contrast between 5.7 & 6.1. Several contradictions and errors. But has no torque specs or anything that would help you actually build one. Nice big section on aftermarket parts, thier installation and hp gains on a chassis dyno. Most all info in book is listed right in our own New Hemi Swaps section.