I have NAG1 behind a 5.7 in a 70 GTX. I used 2:76 gears to start so it would be comparable to the donor car...ease of swap ill-logic:)....anyway, yes, I had to raise the hump about 3/4" but it was no big deal. The computer WAS an issue but that is easily overcome with an after market TCM. This car will absolutely beat snot out of the 440/727 set up it came with. I have not messed with the gears or done anything to the engine performance wise...yet...just wanted to get it all working first. I'm not a racer so that wasn't any goal I had in mind, however, this car is plenty fast, is an awesome cruise, and gets 20mpg! 73mph at 2000rpm.
when you say you had to raise the hump about 3/4", what do you mean? i am looking very hard at putting a nag in my satellite....but wasnt sure if i had to really butcher up the trans tunnel or fab a new one all together. how did you do yours?
