Stay away from the overdrive or the underdrive pulley it's just going to make the car less predictable Kings's advice is very good I've never tried the exotic chassis but I was able to get my car to have a pretty done good without it i don't own 3.5 toed either but I do have a set of mip Pistons in it But I don't run them like the Luces do I run them upside down The only problem I have anymore is traction rolling because I have to much grip My set up can be found back in the pages of the thousands

Has anyone tried's Ceramic bearings in the tensioner