For a mildly modded, mostly street driven car the Lentech Street Terminator would probably be sufficient. I've got what is now the Street Terminator Plus but mine's a trailer queen race car. Their transmissions are nothing short of awesome IMHO. Unless you're going to throw a blower or heavy juice to it right away, I'd go with a minimum of 4.10 gear though. The 3.73 won't be enough for the low revving N/A combination. I'm guessing somewhere around 3200-3500 stall for some decent track performance without too much heat on the street. I'd suggest installing a good cooler like the B&M Supercooler and possibly the B&M Remote Filter. I installed the filter kit just for some added protection to my investment. A brake is really nice, but not a necessity unless you spend a lot of time at the track. You'll be able to foot-brake the lower stall. The brake is awesome though for racing...it'll leave real hard when you're stalled up on the brake.
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Jeff Chambers
Trophy Stock #3
11.462 Seconds / 117.58 MPH
Chambers Racing Team