I just recently bought Sonoma GT #3 and am in the process of upgrading the suspension with the newer S10 ZQ8 sport suspension to lower it 2" and upgrade the brakes to the 98+ Blazer 4 wheel disk brakes and an 8.5 rear axle with 3.73 and a true trac posi. Engine is getting 96+ vortec heads, vortec marine intake manifold, cam upgrade and the base CR will be about 9.1:1, so wont be running more than about 8-10 PSI at first thru a custom water/air intercooler.
I will also be swapping out my original CPI 4.3 engine harness and ECM for a Sy engine harness with the 7749 ECM and have ordered the EBL P4 Flash setup just waiting to get my ECM back from Dynamic EFI.
I pretty much have the engine build taken care of except or what size turbo to run and cam choice. I know alot of the SyTy guys run the comp 412 cam that is 260/266 adv dur and 206/210 dur@.050 with .500/.500 lift on a 112LSA. I have a 2200 stall converter, and with this truck being RWD i don't want full boost way down low cause it will just blow to tires off, looking more for a mid range screamer where i have half a chance to keep traction. My max RPM will be 5500 due to stock bottom end with cast pistons for now.
I was also looking at a few Lunati voodoo cams that are 262/270 adv dur 211/219 dur@.050 with .507/.515 lift on a 112LSA or the one im leaning towards is 270/278 adv dur 219/227 dur@.050 with .515/.530 lift on a 112LSA. I like the second one cause its very close to the GM LT4 Hot Cam, which Ive read is a decent cam to run with forced induction.
looking for some thoughts and advice. Thanks