I love my ptc converter, I had Cope Racing trans build a transmission for me and they had ptc spec the converter. Its a 9 1/2 inch conveerter designed to flash about 3400 and work launching a 6" wide tire in Supercar shootout class factory appearing stock tire class, best of 1.77 60" with a 408 ci sb. I drive the car to each and every race, going to Atco this weekend which is about 3 hour drive. The converter slips just enough not to blow the tires off then comes in hard. oh I had a small cooler and I also run a blanket on the trans and never cooked the fluid, I hot lapped the snot out of the car.