I've read all the spring rate and dampener info on MM website and have determined I need to go 400 front and 275 rear with the either the MM sport or mm2 dampeners. My car will be used for 90%track(HPDE)and I'll drive it to the track(30 mile round trip) and to a few carshows but not a daily driver. I already have UPR front/rear coilover kit. My question is will the MM springs and dampeners be compatible with my current coilover kit or do I need MM coilover kit as well? I also would like suggestions on either the MM sport or MM2 dampeners. I'm leaning towards the MM2 because it's not a daily driver. I'm changing my car over from a street/drag oriented car to an OTD car this winter. I'm in the process of converting it to 5-lug, 13" stop tech fronts and NRC rear cobra disc conversion. I've also picked up an 8-point cage,race seat and harness. I figured it would also be a good time to change springs/dampeners. The car is a 1985 347/tko 600 Thanks.