Overdrive Options

I put a 200R4 in my Dart Sport and consider it the best money I have spent on the car. And I have spent a lot! Very little mods needed. Last year i was 4000 rpm at 70 mph, this year I am 2800 rpm at 80 mph. Better overall gearing than a 904 or 727 and overdrive to boot. Here is a link to my install thread. http://www.forabodiesonly.com/mopar/showthread.php?t=174333 I know 2 Darts talks about being good to 500hp, but mine is good to 750 and they are built to work in a lot of 1200hp Grand Nationals. It all depends on how high you want the build to go. It's worth it, believe me.