low budget bracket racing blues

OK....how bout this scenario. Lets say I put er back together and go test n tune Saturday....but the trans lays down again. If I were to bring it home and swap it Saturday night (to race Sunday) what brand torque converter should I have on hand to go with? What would be your preferred:
fluid type/brand
Torque converter brand

hate to say this..but you do not want to go low budget on a torque converter...

call some of the name brand converter places like ATi ...Turbo Action...