Want to convert from T5 to auto transmission.

[landmass]

Thanks Joyridin' and 750hp for the info. I have Ford 9" rear with 3.89 gear and 26" tires. My RPM at highway speed is low - about 2600 rpm at 75-80 mph. I do have a radical cam and little power below about 2700 rpm. It makes 595 hp at 7100 rpm and builder says I can take it to 7500 rpm - which I do at the track. I'm not sure I like the idea of having to shift, although I did like the "slap stick" I had in my Road Runner. But, if I wanted to, I could just put it in "D" and forget it. It would drop into a proper lower gear when I floored it. I'd like to duplicate that in the C4 - can I? Shift when I want to, but have the option of just putting it in Drive and cruise around? My wife(who let's me do whatever I want when it comes to the Cobra) would love that option! Right now, she won't drive the car - just too difficult for her.