well, as in all, you get what you pay for. In your case, if you're driving it, and it's pulling a lot of vacum at idle, and runnning a street gear, a lower stall unit might add some pep without braking the bank or loosing milage. MP has a few, I get them thru Mancini Racing, for around $200. The 145K version is basically a 1/2 step up from stock. The 166K is a very similar unit to the factory hemi convertors. Those would work fine for you. IN terms of more performance, PTC would be my first choice for being "right" and not costing too much for what you get. Next, Dynamic Torque Convertors, then Turbo Action, Coan, ATI, and the rest. You may want to stay clear of TCI, B&M, and the real inexpensive brands. Some of those you'll pay a lot for the results, or they wont last. Also, you may want to upgrade to an external cooler when you change convertors. If you go for a stall over 2400, I'd call that last part mandatory.