I thought a lot about it before I decided, (going 6.1 / NAG1), first I was gonna use my old 727 so I ordered all parts to make it work with the 6.1, then I changed my mind, and decided on the NAG1, now I got all parts for that, (Hotwire) 4 computer boxes, wiring harness, shifter, gas pedal, tone wheel and speed sensors that goes on the driveshaft. I will have to modify the tunnel slightly for the oil filler tube, and make the tranny crossmember thinner, and make a custom driveshaft. The starter on the passenger side is a problem, I have not solved that yet, but I will, I ordered TTI headers to fit a 727, hopefully I can cut and modify the passenger side. Other people have made their own headers to fit so it can be done. Manual is cool also, but I don't want it in this car.