I Like Mine!!!!
I put one on my '94. Have not seen any benefit but of course my '94 was and is running so bad that I do not expect to see any benefit until I find the silver bullet that fixes the rough idle and no acceleration problem. It certainly did not hurt it. You need the MSD DIS-4 (62152) ($400) and you need 2 tach adapters (8912) ($55 each). They ain't cheap!!!!! You only use 3 of the four channels. Read the directions CAREFULLY! Space is hard to find to mount it. I put mine under the K&N where the old air box use to be. That works great since you need to splice into the wire harness that runs from the ICM to the coil pak. I put one in my Scarab on the 454 and it made a noticeable difference. It idles smoother, burns less gas (have fuel flow guage installed) and starts easier. Also, I see those guys on Sunday making all of those left hand turns with 2 MSD boxes on the dash. That tells me something. Just my 2 cents worth!
Ed Springer
90 Black XR7 5-speed: 70mm TB, Fresh Air Intake, '94 Supercharger, 5% SC Pulley, Raised SC Top, I/C Fan, UD Pulleys, 190 l/h Fuel Pump, 36 lbs Injectors, Headers, Magnaflow Muffler (no cats) with stock resonators, 3:27 Gears, Ripper Shifter, 73mm CL MAF (Blue Tube), Magnacore Wires, NGK Iridium Plugs, Royal Purple Lubricants and Rear Spring Air Bags.
94 Red SC Auto: 70mm TB, Fresh Air Intake, Stock 90 SC Pulley, Raised SC Top, I/C Fan, 190 l/h Fuel Pump, Headers, Raven Muffler (no cats) with stock resonators, 3:73 Gears, Accel 36# injectors, 76mm CL MAF (Gold Tube), Magnacore Wires, NGK Iridium Plugs, MSD DIS-4 Ignition Box with Tach Adapters, Royal Purple Lubricants, TRANSGO Shift Kit, Pro-Torque 2500 Stall TC, Haydon Auxiliary Transmission Cooler, Tokico Struts & Shocks, American Racing 17” Sniper Wheels, Michelin Pilot Sport A/S Tires and 235 RWHP with 315 LB-FT Torque.