You might want to shop around some on the tranny price. If you want a better tranny than the 400, sell it to someone who hasn't been able to evolve with technology, and buy a turbo 350.

It has less weight and less rotational mass; both are siginfignat performance upgrades, sheding weight and gaining additional hp/torque that would be wasted with the overkill pig that the 400 is.

People are running 800 to 1,000 hp through stock turbo 350's with good results although you might be better off with a 400 for these kind of number.

With less than 500 hp/torque a 350 is the most bulletproff slush box you can buy.