Im not sure the dbw tb is going to jive with the 700r4. I dont think youll have anyway to actuate the tv linkage. I have an lq9 in a 90 454ss, as others said, 1" setback mounts are what you need. I sold off all the DBW stuff and picked up a cable harness/pcm/tb. I reworked the stock harness and the pcm in is in the dash in the stock location. You are going to want the f-body pan. I have the gmpp hot rod/h3 pan and its still about an inch below the crossmember.