Hi i did a search and got alot of different opinions ..I have an 87 gt convertible...Car is still speed density with a powerdyne BD11a running 10 psi,i have a stage 2 snow performance water injection kit.I run 19 lb injectors with an FMU NO tune.I run 25 degrees timing locked..Car has an AOD with a mild stall about 2600 rpm's,shift kit,big trans cooler i run 3.55's car with me it weighs 3780..its heavy,..I ran a 1.8 60ft on a set on Mickey ET drag radials Ran a 13.3 @ 104 then got told i had to slow it down being its a vert with no roll bar rules say anything faster then 13.5 has to have it..I know the car has more in it..I want to go turbo but want to run the stock short block..Oh this car is bone stock from the intake to oil pan with a 70 mm tb.Shorty headers,offroad H-pipe,190 lph fuel pump....I want to add the turbo Convert to MAF,install a 340lph fuel pump,42#injectors and get it tuned...run about 6-8 psi How much HP will i make will i be able to get into the 11's?..Or should i add heads,intake,stock cam with 1.7's and turbo and good tune?..or try the stock long block with the turbo and see what i can get? Any help would be great thanks...Just thinking out loud I might stay with the long block and see what it does if I blow a head gasket then maybe i buy heads and stud it and new Head gaskets? just an idea...