vacuum diag will take you part of the way, maybe get the trans shifting closer to correct. the ALDA still sounds like your issue. there should be a banjo bolt line running from the rear of the intake manifold to an electric valve. then from the valve to the a banjo bolt on the side of silver ALDA valve on the back of the injection pump. the valve elctrical connection comes from a pressure sense switch on the intake. when all is correct the boost pressure will go through the valve allowing the ALDA to give more fuel. if you over boost the electric pressure switch will block the boost signal to the ALDA reducing the added fuel and lowering the power boost down to a safe level. you can run without the valve, but it will not save you from an overboost condition. also remove the banjo fitting bolts and clean the hollow bolt on the manifold as this tends to fill with carbon. do not over tighten since it is a hollow bolt

__________________

1982 300CD Turbo (Otis, "ups & downs") parts for sale
2003 TJ with Hemi (to go anywhere, quickly) sold
2001 Excursion Powerstroke (to go dependably)
1970 Mustang 428SCJ (to go fast)
1962 Corvette LS1 (to go in style)
2001 Schwinn Grape Krate 10spd (if all else fails)