Want to convert from T5 to auto transmission.

[landmass]

I've got a Dart based small block with a T5 tranny. I've always had problems with the whole slave/clutch set up and am thinking about going to an automatic transmission. My track times are very inconsistent and I'm tired of constantly adjusting and replacing parts associated with the shifting. My latest effort was a McLeod dual disc and hydraulic TO, which has provided nothing but trouble due to hydraulic fluid leakage from the TO. I've sent the TO back twice, and it has started leaking again - this time contaminating the clutch and causing it to slip. Also, I notice more people at the track swapping to automatics, but theirs are all on newer cars and are computer driven. I have 595 hp and my Hurricane kit car is my daily driver(weather permitting). I drag race about twice a month. Is there an automatic out there that will give me good smooth street service, shiftable up and down, but will also perform at the track? I'm not interested in anything computer driven, and prefer a simple old school, non computerized transmission that will kick down to a lower gear when I floor it, shift at a lower RPM when taking it easy on the street, and is about the same size as a T5, and will bolt right in. I may be dreaming, but if anyone has made this switch, or has an auto transmission on a small block ford in their Cobra, please advise.