Hey, I can answer that! The Rod Shop Colt was used in 1974, with Jim Thompson driving, to test the prototype W2 heads. This program was parallel to Don Carlton's testing in the "yellow" car. The Colt ran a best of 9.12, as I recall, at about 100 lbs under the NHRA Pro Stock weight. There was alot more potential in the heads, but they were breaking blocks as the HP went up. The results of the Carlton and Rod Shop testing is what got Chrysler (slowly) started on developing the 340 race block which finally showed up about the time Glidden moved over to Mopar and ran the successful Arrow.

As for Desantis and Crider, they were trying to make a go of it with T/A type heads. As I recall, they only ran the car for a partial year, breaking alot of parts and finally selling the car to Roy Hill who put a Hemi in and did real well in IHRA Pro Stock in 1976 with it. He also ran his Duster in NHRA Pro Stock that same year.

Hope that helps!

Mark