Ok so i have a Turbo 350 Auto Tranny, Late 70's Early 80's Chevy 350, HEI Dizzy Quardjet 750cfm 4brl Carb in a 1981 Short Wheel Base Blazer 4x4. Stock Tcase. The hole problem started with the timing going out and a bad starter. When this happen i used the downtime to installed a 4" suspension lift kit. I only have the front drive shaft in right now as im waiting for my new driveshaft from the local shop. So no rear driveshaft right now. I replaced the HEI dizzy and the starter (starter NAPA rebuilder) plugs, plug wires. before i changed the starter i had it timed and running. it ran fine and changed gears no problem with just the one driveshaft. I drove it up and down my road a few times with no problem. Say 5km total. after i installed the starter (the next day) i rechecked the the timing with my timing light its still at 8deg right now ( unpulled the vac advance line timed it to 8deg and plugged the vac advance back in). It started after 2 pumps as normal and ideled fine. I changed gears and Stall. Tryed a few more times and stall. I let the truck warm up and still a stall. I checked all the fluids and they are fine. If i put the Tcase in N and changed gears it dont stall. once i go to 2h, 4h or 4l on the tcase and change it stalls. I can keep it running if i rev it right up and changed gears and then i can drive but if i let off the gas it stalls. I checked the idel and put it up way over what it should and still a stall. I have to rev it really high to keep it going. But in park it idels fine. im not sure how to check my transmission vacume line from the dome but i did replace all the vacume lines on the carb today and still it stalls when i put load on the motor by going into gear. anything i should check or a way i can check the trasmission vacline?