Hello people, the head on my 1988 rsturbo is getting a little tapperty and its starting to do my tree in, as the car is only lightly modified with the usual, chip, exhaust, airfilter and front mount the next logical area is the head!

so what should i go for? a stage 1 2 or 3? i dont really get what the different stages are so any explination would be great, and what comes with the different stages

again goes for the cams there are loads on market and then there are all the different models within each brand but what would be best for the engine ive got?

i dont mind rebuilding it myself as ive got all the tools i just need to get all the different parts together any other advice would be great!