Quote Originally Posted by More Power View Post
GM produced vacuum pumps and a VRV (Vacuum Regulator Valve), that was bolted to the side of the fuel injection pump, to simulate manifold vacuum on a gas engine. The VRV allowed a TH400 (or TH350) to function and shift normally behind a 6.2 diesel.

Jim
How much would a vacuum pump and VRV cost me? I can get a 700r4 or a 4L80 for about $500. Would this be a better option because I am on a very tight budget and already have the engine and brake booster.