I'm just going to add my two cents. I wouldn't splurge for the Edelbrock kit just yet. As archaic as TBI is, it's really all most people need. The Edelbrock kit is a very simplistic version of MPFI. It costs too much in my opinion. The real advantage is the MPFI manifold Edelbrock makes for AMC engines. I'm working on a Ford based sequential MPFI system that uses Edelbrock's manifold at the moment. Right now, it looks like the cost will fall between $1000 and $1500. The real cost is in the programming equipment, so if more people did it, it could become quite economical. The Ford based system is light years ahead of the Edelbrock kit in terms of engine management and processing speed. It's able to keep a much tighter reign on the engine, resulting in maximum power, efficiency, and the cleanest emissions possible.
1991 Grand Wagoneer, Stock, 99k.
My buddy Sam: "...as far as gas money goes Peter's car is as thirsty as an alcoholic on St. Patricks day..."