I’m doing the drive train as well…I have a Spec3+ clutch and flywheel and 3.90 gears with the hardened output shaft…I was more or less looking for some bigger power…the drivability can suffer a little, but I do no want anything to break/ maintenance wise i want it to run forever. My main decision now is to get just a cam or to do a cam/head at the same time. I’m assuming with a cam i’m looking at 375rwh and head/cam more like 450…I’ll be running a 100-150 shot on top of this and was looking to see if anyone had a cam only set up or head/cam set up to look at before I went nuts…I like to research everything before I do it to make sure i’m not going in over my head and to make sure i’m getting something for my time/money/effort…