My question

Im so interested in your Engine. The Chrome Rocker cover does this give any advantages to the engine. IE Xtra speed or power?
THe cosworth Top engine. How have you fitted this to the XR3i engine.
Also hope you do not mind me asking how quick does it go?
SOrry some of my questions may sound stupid but i am a 17 yr old and this would be my first power wagen!