I have 1985 mazda rx7 and i am thinking about buying carburetor kit and i am wondering what other's experiences are about improved performance. Also has anyone have experience with turbo-kits? I am not mechanical.

 

No offense but if you are not mechanically inclined and that is a Pic of your car,then please leave it be!
It's too nice!
Why do you need a carb kit?
..and there really isn't a "turbo kit" that is bolt on and go.(unless you are referring to a Car tech turbo setup)

 

^ what he said.

carb kit should be oem rebuild kit. if you REALLY want to mod it, look into a mikuni44, dellortto45 or weber 45

Start with the basics, rats nest delete.... air pump delete w/plate (do it right), oil changes, new plugs, new air filter for the carb hat, coolant flush... etc