Installed a FiTech EFI system for my V-6 Jeep. After some research decided to go with FiTech, as there system will work with the odd fire, as long as you have a HEI Distributor with a square wave signal. Had to buy a adapter plate to bolt the FiTech to my manifold. Got a adapter plate off of EBay. The install was easy, one of the biggest issue was dealing with the length of the wires on the wiring harness. I installed a FiTech Force Fuel, this is a 1/2 gallon tank I attached to the firewall next to the brake power booster. Fuel is pumped to this tank and tank has a fuel pump in it that boost the pressure to 58psi. for the EFI, there is a return fuel outlet on the Force Fuel. I did not want to have high pressure fuel lines under the Jeep, so this is why I went with the Force Fuel. I have driven the Jeep just around the neighbor, not much. Need to get the front end aligned. When taking off from a dead stop, I would see black smoke coming out of the exhaust pipe. I talked to FiTech and adjusted the AFR at idle and this helped a lot. The Jeep is driving much better than the carburetor that was on it. Got the engine idle set at 725 and it has a smooth idle. The hand held shows the RPM jumping up and down, yet the idle is smooth. Talked to a FiTech tech about this and he said that the ECU looks at the RPM and there is a fast processor that adjust everything. (I am not very technical). The RPM gauge in my cluster has a needle and this stays steady. What little I have drove the Jeep I am very happy with the way it runs. Will need to adjust the EFI in the future, but per FiTech, when a adjustment is made, you need to drive it for a while and make another adjustment. Do not make several adjustments at one time.