Thanks steve but i am putting engine in boat and wbe using over5500rpm and was wondering if a 195cc head would fall over with a medium hyd cam before these revs. i am getting feedback that vct junior could be to big at 215 for this amount of revs and still sustain some low down torque.Also was just wondering who to try other than flatlander or summitt as im in australia and have a client in new york at this moment. Does your engine make power at 5000 odd or does it fall over, hyd cam or solid.