[Keithc8]

I have used a set of the BeeHive springs on one of the nice FE engines we just finished and they seemed to help a little with the rpms. This piticular engine had a hydraulic roller camshaft and did not fall of much up to 6500rpms and at that point I did not know if it was the lifters or the dual plane intake manifold. The springs we use were some of the NASCAR springs that Comp does not make any more.
We have seen no real wear on the camshaft with the ceramic lifters because they stay turning all the time without any hurting the camshaft.
I have used the Titanium valves on very few of the street engines but the ones I have used them in seem to be doing fine. We use them all the time in the Dirt Late Model engines we build
and we will put about 1000 miles of hard racing on them with a lot of heat cycles without any problems yet. If I was going for anything above 20,000 miles I would look at the stainless.
The other thing that is nice about the ceramic lifters is that we can change camshaft as much as we want and re-use the lifters and do not have to break in the camshaft. You do have to watch floating the lifter as they will shatter and make a mess. Thanks, Keith