iam going to put a/c delete and the smog delete on my mustang but iam not putting the pulley where the smog goes and iam not putting underdrive pulleys on either does any one know the belt size for that thank you for your help
take some string and route it just like you would route the belt when the a/c and smog are removed. Then measure the string to get the belt size. You might have to get a few belts to get it to fit exactly right. I bought two, one that was the exact length of the string and one that was bigger. I ended up using the bigger one. I cant remember the size of the belt tho.