Well i have been thru my share of 200R4's, but i always wanted one of those high dollar unit's. Anyway a friend of mine ran a 200R4(Art Carr) in his 87 Monte, and has raced me before. After having this Art Carr unit, and 3800 N/L for 7 years, it started to show wear when he added NOS. Instead of sending it back to Art for a rebuild, he used a person unaware of the Art Carr stuff. Now they changed the Valve Body(mistake), and the trans has'nt lasted a week, and he tried again with a guy i know is good with stock rebuilds, but not High Perf stuff. so he sold the trans, and stall to me. I have my old BRF with a good servo, but his has all the billet stuff, but the valve body has been replaced with what im not sure. Can i use my valve body in this trans, and will the Billet 3800 stall help my car, or hurt it? I now run a TH350, with 3000 stall, but i miss my Over drive. Also where do i get the rebuild kit?