Need 3K converter...

Say, just to give an example of what a convertor will do in diff apps. My GER started out as a 9.5 4000 stall built for a small block 3000lb car. First car it was in was a 340 Dart that ran 11.70's and could only stall it to around 2800 no matter what we did. Next was a 440ci 72 Charger that ran 12.70's and it would stall to around 3800. Next was the 66 Valiant with a turbo 170ci and it wouldn't even hit 2000 but when the boost hit it was at 4000 right now. With the 225 turbo I can get it from 3800 to 4200 anytime at it running 10.90's With it running faster now, the motor walks through it and acts like a snowmobile. Launching at 5000 is no fun when you shift at 5200 and the motor dont run past 5400. I have launched the car at 23 psi before and this is with 10" drums on all four. later