I did that with the 340 in my first racecar. I ordered a Cam Dynamics 300 H which was the biggest hydraulic they sold. It was a badly mismatched combo. I eventually changed the rear gears and converter and sorted it out, but that taught me a lot about restraint and picking parts that compliment each other. The best compliment I was ever paid was my buddy who built engines. I left the car with him for some work and he drove it back to my place. He said it was the best sorted combination he had driven.