ptc

I don't like to say anything bad about anybody and i really can't say don't use their products because they took care of me when things were not right.
I bought a 904 transmission and converter from them and the stall speed was off on the converter by 500 rpms and the transmission did not shift the way it should have.
I took it all out after running it and sent it back for a full refund.(PTC)
So in seeing that kind of customer service, i won't say don't buy it.

Dynamic is really good and i have never really heard anything bad about turbo action and they are also good.
All i run is dynamic transmissions and converters ,with turbo action valve bodies.
My last transmission was build by my freind who knows 904's/727's really good.
It's all about who builds it.
That go's for any company also.
Some people are just better then others.
My chevy friend runs a ptc combination and has had 0 problems.
If you buy a dynamic converter,go with frank lupo's dynamic transmission.
Both my dynamic convertors were right on the money as far as the stall speed goes.
I bought a 10 inch over ten years ago and it's still running in a second car.
The 9 1/2 converter is nice and lowered my rpm on the highway a little while giving me almost 1000 more stall speed.
The 10 inch is a 3000 stall.
The 9 1/2 is 3800 to 4000 stall.
Good luck in making your mind up.
If your going with a convertor over 3000 ,i would go with the 9 1/2 dynamic.
What cam are you running????
If it has a big enough duration to it,the peak torque will be kind of higher in the rpm range.
Just match it up so you have the stall right under your peak torque.
Talk to the company who will build your converter and give them all your information and what you really want to do.
They want your business SO REMEMBER, the price can be higher or lower and it's up to you to get a better price.
Let who ever you are buying it from,know that your shopping around.
They will always come down on the price.
GOOD LUCK :glasses2: