Thanks for the info and the link guys. He is running a 350SBC, he figures it to be around the 350-370hp range.Has DBL hump heads(done) and a large cam,headers.Car was originally a 6cyl and at current still has the original rear end in it.What is happening is like he needs to give it a good amount of gas for it to roll and when it does it squaks the tires. He basically doesn't like the feel or uncomfortable that the tranny is doing this.He has yet to take it out of the driveway for a run.Does it sound like he may have went a little overboard on the stall converter? Could it be like TOHcan mentioned, trans is locked? Or is this something he just needs to get used to? Thanks for the input.

David