all the LS engines like to rev and make power at higher RPM's, which means TC and gears. The TR220 would only enhance those higher RPM's, IMHO.
So who wants to turn there tahoe to 6500 rpms??? The comp 212/216 low lift was dyno'd with a header swap and gained 44hp/19tq at the top of the curve but at 6400rpm gain 60hp/55tq..
There was nothing lost at 2k rpm's either,so why would you want to move the power band up even more with that cam???