I have a 1980 Malibu BBC 496 with 16 X 32 MT slicks with 15" wide rims. It won't hook until I get down to 10 PSI. (My tire guy told me to start at 12 and go up.) Temp does not affect my set up that much. My guy also said do a small burn out. It takes at least a medium burn out with smoke for 5 seconds to be consistent.