Search:

The head itself, smaller ports which speed up the gases entering the head coupled with the bigger 33mm inlet valves is what makes the big difference. It's basically much much more efficient that the...

Missed this one, if it's of any help, exploding_penguins car, Valver with full megane engine & wiring, freshly rebuilt with williams cams fitted made 165bhp & 147ft/lb. No mapping or any other mods...