Ok, I bought a PT-68 turbo a few months back and there was no info (that I could find) out there except for HP ratings. Please take a look at it a tell me which one it is. I also put a link here showing the four models. Thanks for your help!
http://www.nolimitmotorsport.com/precision-turbo/turbos.html?T4-Race
http://www.nolimitmotorsport.com/precision-turbo/turbos.html?T4-Race
