I am going with Ken at PTC. He is in Muscle Shoals Alabama , does great work, 90 miles from me and will warraty your application. He can build them for 1000 plus hp or a mild sm blk engine. He is doing one for my 572 street hemi engine. it made 778 hp @ 5900 and 740 lbs tq at 5200 I take my dyno sheet, car weight and tire/gear size with me. My suspension and stock appearing is the hardest part. TQ means nothing if it will not hook, and running 354 gears in the high 5's is a very daunting task, to say the least. Soon I will be starting on my 64 1/2 Barracuda . going with a stroked small block in it. I just picked up 4 of them. So I have enough parts to make a very clean sneaky A body barracuda. 3 have 4 spd's in them though.