Nissan 350Z v Porsche 911 v VW Golf MK I, 30 years old golf is absolute winner.
Well we all know that you can make great results with tuning your car. On this video you can see that anything is possible.
In this case, Golf MK1 is created with style and most important, with power.
To have best running, first you need to service the engine, then oil and filters along with rotor arm, dissy cap. Once you have it all in good shape you should check timing marks for cam belt.
Next is mixture setting with CO2 meter to get best set up.
Just one thing, this is expensive sport, so you should plan all in advance.