Thanks for all the great info. I have been reading about all these guys breaking their stuff because of these super heavy duty valve springs they have been using. The reason they need these springs is to return the valves sooner right?? Has anybody thought to try to make a lighter weight valve so they won't have to use such heavy force load springs?? It would sure seem to me it would save a lot of wear and tear on the motor that way. How about Titanium??? It is light but pleanty strong. Has anyone made titanium valves????
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