Classic Mini DIY cylinder head porting for better performance

Since the rebuild from my engine I decided that it would be the next project to upgrade the cylinder head. I&the person who don&is afraid to try things by myself. So I decided to make my Engine a stage 3 engine, by porting the cylinder head. You really feel some differends in power then before the job. The Mini haves the following specs: -1275 engine +0.20 now a 1293 cc -Kent 266 camshaft -Maniflow stage 2 exhaust manifold -centre main strap -double valve springs -ported and flowed big valve MG Metro cylinder head -Rc40 twinbox exhaust -electronic Lucas ignition -K&N open air filter -alloy Fletcher radiator -twin steel blade cooling fan -upgrated differential pin -3.1 final drive -KAD quick-shifter Feel free to leave a comment or subsribe!