Going to the strip for the 2nd time and wondering if its worth doing a burnout before staging my 69 camaro. I'll be going to infineon raceway in Napa Ca. with BFG street tires. My first time a week ago I ran it as it was( just like I drive it every day) 44 psi in the front and rear. I had pretty bad wheel spin at the line and it only has one leg no posi. I know I should drop the air pressure in the rear. Any suggestions on how low. BFG's 255/60/15