I am building my Mk1 into a race car, I have a 1.6 EG code engine and I'm looking for any advice from anyone with experience developing these engines. I've previously raced an alfa so the golf engine is new to me. I won't be doing the work myself so I'm looking for advice on what can be done and where to get it done. I know this could be endless so maybe its worth starting with advice on the head, I've read some of the threads on here, but as I say I won't be doing the work myself. I always ran standard valve sizes in the alfa, are bigger valves an option on the EG engine? Are they essential for achieving greater power? Any advice welcome.