I own a 93 GT ragtop with a 331 from CHP. The car is a 5 speed tko and I am having trouble finding the right belt size. I have put BBK underdrive pulleys on it and it retains the a/c. I have also eliminated the smog pump. Can anyone tell me what size belt i need ? the car is in a friend's shop 25 miles out of town and running back and forth is getting expensive. Thank you