I have the 212cc predator clone and recently installed the OldMiniBikes stage 4 hemi on my DB30, the kit doesn't come with upgraded valve springs. It has the mod 2 cam and I can't find any 22 lb springs to turn 7,000 rpms. It is floating the stock valves. Can someone point me in the right direction on where to get 22 lb springs. I found 18 lb but I would like some 22 lb springs.