Hey TR...I just boosted my ls with stock intenals last night...i have a walbro255, dsm 450 injectors,log manifold with a 50 trim t3/t4....i have a basemap...i am getting spark and i know i have fuel pressure at the rail...i dont have the turbo piping hooked up yet because i wanted to just see if it started...its turns over and sounds like it wants to start but wont stay runnning...i tryed my stock ecu again and the same thing happened..i changed my cap and rotor and still the same thing...maybe its off time a tooth? idk..lmk guys