Well I've decided... sort of

If you want to use the 42RH, you need to call SMR Racing...they are the experts on the TF overdrive in racing/performance applications..

As far as a 904 living, I got 3 904 in drag racing cars...Just got home from the track, been there friday, saturday..and sunday night....The 904 in the 71 Dart...is working on its 5 season of racing....hitting it with a Tranzact transbrake.....If you take out the cost of the transbrake...I dont think I have 300 bucks in it including the cost of the 24 spring kit that is a one time buy...

Just look at my sign below....the barracuda, dart and demon are using 904s...

btw the Dart ran a 11.04 @ 119+ with a corrected elevation over 6000 ft.