I just installed the RJC Racing IC-315 XTF megacooler front mount intercooler, RJC 3” down pipe with test pipe, TT E85 chip, 80lb injectors, E85 converted, hotwire, 3.5” tinman cold air with LS mass air, Caspers volt booster. I am going to order the 6262 Precision turbo. The question is I have a buddy who has a real Art Carr 9” non-lock up converter with the (P) re-stall estimated at a 3000-32000 stall. It has 1k miles on it and is in perfect condition. Should I purchase it for $450 or spend the additional money and get a new PTC 9.5 Non lock up converter or something similar? My goals are to have a high ten sec car but more of a fun street car. Your help is appreciated greatly. I will eventually do heads and a cam but they will remain stock for now.