Hey everyone

I have a 78T/a that I may drop a LSx engine into and I am considering switching from an auto to a manual. Im just wondering what would be cheaper to build up to hold power. Id hope for atleast 600 ft/lbs of strength. Id like to be able to compare with an O/D auto, with all cost in such as torque converters and clutch's and everyone thing else involved with both

Thanks Mike