727 to 904 swap is said to be worth about .15 alone, converter should help as with all the weight loss.
9.69??????
I'll tell you what we found. My Son was going 10.50's with his 360 engine at 3200 pounds with a 904 transmission and a 5600 stall converter. We installed the CRT 727 that came with my Duster after Matt broke his second 904 converter hub but at the time I only had a 4000 stall converter. The Duster slowed .50 in the 1/4 mile. I bought 2 converters from a Moparts member in a package deal and both were just freshened. We installed the one that the seller said should be in the 5400-5600 stall area which it ended up being 5500. The Duster was back running 10.50's and even a few 10.40's. I talked to John before installing the second converter and he said if I got the converter right it word be LOTS stronger and run about the same. Thanks John.
