Madmole seemed to have good results having his chip burned for the car's mods. Perhaps you should look into that to take full advantage of your mods.

Being a little more realistic then just saying slap a turbo on it (since they make it sound as easy as changing plugs), I would look more into headwork, perhaps bigger valves and camshafts. Personally I would want those if I was planning on a turbo anyway.

BTW, how do you like the Lockwood dials that you have? How is their build quality? Would you buy them again?