[ivy95gts]

Don't mean to answer for him, but you can ask for John... that's him.. of course. And though I'm late on the post, I figure I'll at least pop in long enough to second all that I've heard. Them 4.6's respond REAL well to 4.10 gears... and although I waited quite awhile before installing a gear in mine, when I did I found out real quick that it should have been my starting point. John had had his 4.10 installed and I was doing all I could to keep up with him before I had my 3.73, and my car had a mod or two at the time to his STOCK 4.6 with a gear. And as far as the underdrives go on the 4.6's, I not overwhelmingly sure... I know on my car I felt a good gain from them, but it's a 5.0... totally different beast. Ah well, enough gibberish from me.. have fun with the new car, but be warned... tempermental little bastards they are LoL