I have a 1999 rover 200 1.1 Hawaiian blue that has 50.000 km and is in mint condition. I'm thinking of tunning it I can't find information about how to fit a 1.4 16v head. I'm also looking forward to upgrading the throttle body and adding an exhaust valve and some 15' wheels. I don't want to engine swap etc. I'm looking towards maybe 70 hp. Can i please have some advice about this.