Id say monsterous single turbo. and a monsterous size of spray on top.

 

Hobbies are fun to have though. I like working on stuff to get them finished and see the final project. I never really knocked my lego's over just after making something out of them though.

 

The 122 made alot of power. In fact, it made enough power to realize the shortcomings of leaf spring suspension, both Joe and Steve took a ride in the truck, they can tell you how it felt to them. I think "ok, slow down now" was one comment and they seemed surprised the big HD moved out like it did, lol.
I think I'm more of a project guy anyway, I find myself getting more excited about the build than saying "she's all done", besides I have a daily driver so having the Chevy down for a 2nd project is no biggie.

 

PSI 14-71 Hi-Helix

 

oh that's Nasty!

 

Either a TVS2300 or a turbo (or two ). Your compression is too low to do a good N/A build.

 

what would be the absolute smallest single turbo one could run and make 600rwhp?

 

I wouldn't go any smaller than a T76 sized turbo.

 

With your cubes I would run a T-76 at a minimum.

Damn, Juan beat me to it.

 

I would agree, a T76 or S74 would be a nice choice. With your cam being heavier on the exhaust side it will spool quicker than a reverse split if you did use the same cam. The Silverado SS that went 11.01 did that with a TC76 and a 370 if I recall correctly.