I like that...lol.
The 273 even in four barrel form is a low torque engine, best power is usually between 3-5,000 rpm's. I don't want to bad mouth the big mail order houses because for the most part, they are great. But when it comes to torque converters i prefer a good specialty builder and in your case with the low torque application, one of the converter specialists can build you one that has a true 3 thousand'ish stall and still drive like a stock converter around town. As far as the shift rpm, you can manually hold it for what you need, although a floor shift does make it a little easier.
