Here we go:

"That TR220 cam runs great in the 5.3L. Idle is somewhat lumpy, but the truck has stock tuning and has never tried to stall. We did raise the shift points to just over 6000rpm and it pulls hard all the way there. My buddy had a 216 cam in previously and it was also very good, but this one makes more power and idles a little rougher. Its totally streetable, and will idle even better in your higher compression 6.0. He seriously lost no low end power...people talk about losing it all the time, but its not the case. Obviously there isnt a way to dyno power below 2000 rpm, but he was going by the way it tows a heavy trailer at low engine speeds. It really starts going at about 4000 rpm...feels like you turned on a baby shot of nitrous..LOL. We just raced a Dodge Hemi truck when were were both pulling identical snowmobile trailers and we said bye bye to it at about 70mph on the freeway. We live in MI and the truck starts right up in 0* weather. This TR220 cam is on a 114LSA, but the 112 will definitely make a few more hp in the midrange and will idle a little rougher. IMO, either TR220 cams would be great for your truck. FWIW, I had that cam in my LS1 car and it ran very well in that motor too. Great all around cam that I recommend to lots of people.

It seems to start making more power than stock at about 3000 rpm, but makes no less than stock at any rpm. Another thing that made a huge difference is when we added up to 7* more ignition timing in some spots with LS1Edit. The truck still runs on 87 octane with no knock retard."

He says he's gonna try to get a soundclip up...

 

sweet dude,
yea, get that sound clip up,
thanks marc