A904 high performance rebuild--advice wanted

300 HP is nothing for a 904. I currently have PTC building me one to handle 550 HP with automatic (kick down) shifting. They are also building me a 3800 or so converter for the combo. I will shake the combo out on the strip in my drag Demon but in the end it will be the combo for my street Barracuda.

PTC is an easy choice for me though as they are just down the road a bit and the owner is a Huge Mopar fan / racer.