I think i posted this in this post i had a 87 GT convertible...BONE stock motor...AOD 3.55s the only mods were shorty headers,off road H-pipe,
flowmaster cat back....shift kit...mild stall...i bolted on a little powerdyne...made about 9 psi.....stock injectors with an FMU...i did upgrade the fuel pump to a 190 lph only reason because the tank was bad so i replaced it so while i was there i did the fuel pump..OH YEAH car was still speed density too..ON STREET tires...with a 2.0 60ft it went 13.1 at 106 mph...the car had high 12s in it for sure..the only reason i changed that set-up was because in a convertible you cant go faster the 13.49 without a cage....so i said if i need a cage i really want a cage so i then did heads,intake STOCK CAM and went turbo....but i liked the car more when it was basic...trust me that car is now gone and i have a 92GT thats going to be basically bolt ons...with a blower...simple and fun to drive....