I'd love to! Not sure how much info you have on NASA, so I'll put more in here than is probably needed:
I race in the NASA TX American Iron series (AI) where it is a Weight/HP ratio limited class which allows 9.5lbs per 1 rwhp. Car is an Ebay purchased 95 Mustang GT with 115K miles, I put the full Maximum Motorsports race suspension under it (panhard bar, Torque Arm, new K-member, coil-over shocks, new springs etc.) and did a front brake upgrade. We stripped the interior, welded in a full cage, took the stock 302 and just bolted on new heads/intake/TB/MAF while also installing a Ford E303 Cam, got her up to 298rwhp from 197rwhp stock. Right now it weighs in at 3160 with driver, my class and my HP level will allow me to get down to 2800lbs with driver post-race so I have some trimming to do. Rear gear is 3.55 which seems to work well at TWS but not enough for MSR, but I'm on a steep learning curve so the driver is the limiting factor right now
AI/CMC (Camaro-Mustang Challenge) is just getting started in TX, in the March race I was the only AI car and at the August race we had 5 AI cars, next year it is projected at 22 cars based upon responses we got at the August event. Soi far it's been a great experience for me. I looked hard at SCCA racing but was overwhelmed with class rules and NASA worked with me so I went there for my racing fix. I still carry my SCCA membership as I do the occasional AutoX (Solo II) event in the Mustang, but I get my rear handed to me in the CP class!