god knows how you would run eight injectors on a CVH and you most certainly would not need to as people like NMS and Christan have achieved over 350 bhp with four injectors.

The biggest problem with very high powered CVH's is getting them to hold together and buying gearboxes. Don't think a massive power CVH is cheap though a genuine 300bhp engine will cost you thousands including the management and your first gearbox of many.