Got my Doug's D4477R's today- $345USD. They may be only 1 5/8" tubes, but IMHO more quality looking than those TTI's. The smaller tube isn't going to hurt at my intended performance level. Besides, after reading the "Slick-Built Small Block" article in the April issue of Mopar Muscle, I've come to the conclusion that the less than 1% improvement they saw on that stroker (which would never be felt in the seat-of-the-pants) I'm a-gonna be happy with my buy...