At Wits End

[baerf250]

Hey guys, I recently purchased a 2007 W900 with a CM870 that has been completely stripped of all stock parts and has an S410SX turbo. I've been trying to get this truck on the road but it just won't run hence why I'm here. I've had 3 different people tell me they could fix it, no dice. It struggles to get over 1500 rpm even bobtail and will not push over 20lb of boost, I've put new exhaust on it, new fuel lines (suction and return), ran all cutout and performance tests, ordered the tool and did the injector bleed test per Rawze's video, checked cac and all boots for leaks, new fuel shutoff solenoid, all new sensors, ran the rack and checked the timing and it is spot on. I hate to have to spend the money to buy a VG turbo and all the EGR parts back on this but I will if that's what needs to be done but I thought I'd give this a shot first. Any help would be appreciated.
ESN 79173964
CPL 8518