I've got that catalog. It is cool to look at everything that was available over the counter back then.
I'd really be interested in getting hold of any of the TSB for the program, #110, 115, 130, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 144, 145, 146, 148. Or the assembly manual which has all the details of assembly, layout, and specifications. I've been looking causally for a decade and not found anyone willing to part with them.
The holy grail of kit car stuff is the full size blueprint layout that came with the car when you bought one. They are a full size, 1:1 ratio with all the specifics that Larry Rathgrab and Co put down to assist with construction, layout, and repair, along with part numbers, interchange, and models where bargain parts could be found.
Sparks Bros racing in Long Island used to reproduce kit car chassis back in the 90s. I remember seeing their ads in the mopar mags. They offered gun drilled t-bars, tubular sway bar kits, custom rate leafs, special shocks, and all the cool stuff we think is new these days. I seriously thought about buying one of their chassis' back when I was circle jerking, but after wading up one too many cars with my local ya hoos, decided to go drag racing instead.
If you haven't picked one up yet, the Mopar Oval Track Racing book is a must have for all the historical info on the oval track program.
I thought about building one just this past winter when I scored a really good price on a 72 Challenger. However, after looking deeper in to the car and figuring out all the parts I'd need to replace just to get rid of the rust and have a good starting point, I decided against it. Additionally, it is nearly impossible to get a torsion bars bigger than 1.22, and even those are hard to find. I don't know what spring rates those chevy boys are running at your track, but around here they are using 1000-1200# springs up front. That is the equivilent of a 1.30 to 1.45 t-bar, which just don't exist any more. At that point, you just can't make a stock chassis mopar competitive on a banked oval. Now a road race car may be another deal, but if you were really serious about that, then the liberalness of the rules really make it a no brainer to use coil overs anyway. If you went the coil over route, a new Dynacorn body would be perfect for that. Buy a couple to have a back up, and man you could have some fun!
I trust you've browsed these links?
http://mopardealer.com/chrysler.htmhttp://www.race-cardrivers.com/Chrysler%20Petty%20Kit%20Car%20IMSA%20Volare%20Road%20Runner%20SCCA%20Trans%20Am.htmKind of looks like it would have competed with the IMSA Monza's back in the day (monza popped into my head because I have had a couple).
Yup, there were versions that ran in IMSA. Check out the links above.