for you colorado guys greeley automotive machine is another excellent builder---they build race motors with a guarantee---one of my friends had them build 3 including a 400 stroker and a nascar motor(dodge) my friend--larry chrisman owns a torque converter shop and is now building a moderately priced mopar (and ford) race converter---he said there is a big hole in the market for dodge and ford guys that cant afford a $1000 converter---larry bought one of those (1000$) and ran it for a season behind his 400 stroker--he cut it open to inspect and found the inside full of machined down nissan parts----check out his website at chrisman performance he has shipped to all continents (no penguins) and has drivers running from laramie/cheyenne to colo springs----bob