marty i second ptc alot of us use them around here and every one is happy with them.ive been to there shop in muscle shoels and believe me there are alot of drag racers working there .the place is full of race cars.i trashed my converter last year and took it to them.icouldnt believe it they cut it open right away it was in pretty bad shape .they said it could be fixed but its been around for awhile and i opted for another converter instead.cheap converter to start with but it was very consitantin the car.they did my 8 inch also it is a little looser than im used to and had to find a different place on the tree to leave from
