Max boost is 12 psi. We had it pulling up to 14 psi and it had too much timing, spun it too high an rpm and started detonating so we tore it down and it had started to eat the center main bearings. The System 1 oil filter caught everything thanf goodness. We shouldn't have had the timing so high, it would've been fine, and it made 600 lbft and 650 hp.
With the 6000 rpm rev limiter and less timing it made 12 psi and peaked at 582 HP ad actually picked up 7 pounds of torque at a couple hundred less rpm.
I have never messed with turbo's besides replacing Caterpillar turbo's on tractors. I went with a SC because they make power right off the bat as soon as there is rpm. you should see the graph, it just climbs and climbs. Yeah, I know it takes power to make power too. You also get that power without the scorching temps of a turbo.
I would like to get some sort of turbo car in the future. They are awesome power adders. My Dad had 2 twin turbo Stealth R/T's, what a rocket. I love that tubo sound too.
The great thing about this engine is the longevity it will provide. It makes more HP than the Internet Experts say LA's can take but it has a main girdle and it's a stronger '71 360. I had the block machined for hyd. roller lifters and it has a small cam. It is a verry happy combo and doesn't fight itself to make power especially with the power adder taking some HP making chores off the engine itself. I think that is a big deal, the harmonics are cut down alot and I think violent combos like with wicked cams and weaker late model blocks wouldn't last too long but this thing operates very smoothly, idles at below 800, and will likely last a long time.