Been a LONG time since I updated this. I put a set of 84/85 GN manifolds on this winter and built a stainless two piece down pipe. It hits 9 PSI now and Ive turned the wastegate half a turn so it should be like 7.5 or so. Cam, ported heads, good filter, good exhaust and tubular headers will make an 80 turbo boost creep like crazy. This is with the BTM turned to 1.5 degrees/pound so im taking almost 15 degrees of timing out on the top end! Gotta throw some 91 in and turn it way down.
I also am swapping to 3.42's and a posi in the next few weeks. 200R4 is going to get a filter and go back in the car since Ive been told its in good shape. Im also going to get either a stock D5 GN converter or something higher stall. Been busy painting Dad's 73 IH pickup so ive been not working on too much more.
I am daily driving the cutlass again though.