[blykins]

Street engines usually don't get pulled to 8000 rpm, that's my point. Race engines do.

I don't have a list of all components that you used in that engine, but knowing that you have a solid roller, I would not be comfortable with your valve springs for anything over 6000 rpm.

Valve springs keep your valves open/shut and the lifters on the lobes. Why take a chance of hanging a valve open? This is a very important part of the engine and since you have it all torn down, why not put the correct springs in?

I can't remember what you were using as a camshaft. Did you end up changing grinds, or did you reuse the same cast core camshaft? I, along with several other engine builders that have been watching this thread have advised you on which cam core to use, which springs to use, etc. I haven't really seen you take any of that advice, but yet you keep asking for it publically.