Working on an Old Hemi Prostock at present and just put the Caltracs in the Cuda. 21 inch front 35 inch back wanted to move the axle back to the middle of the wheel well to make the tire look centered. The wheel base when raced was 106.5 inches not 108 so now we gained back 1 inch to 107.5. Also went with the rear spring that goes between the Slider and the eye to lower the car just a little but if that is not suited when testing the Cuda will go with the normal way the rear spring going under the eye. Did you pick up much 60 foot, also running a rear sway bar and Wheelie bars off the axle location but will have the capabilty to run those old drop down old school wheelie bars. Lots more work to go on this car to make it look like the old 1972 Pro Stocck if was in 1972. Could of restored the Cuda it is a 1971 Hemi Cuda but thats not our way, would rather trailer it to the track then to a car show and a lot more fun running at 150 MPH than having it sit indoors looking pretty.