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wow, you guys really got worked up over this one. I have had no problems with geardrives, but have had problems with "high quality" chains.

I did a search and found a Camaro forum. One of the posts said that John Lingenfelter and others could not prove the theory of gear drives causing harmonics. I know that guy has built tons of engines...

I don't think that the sound is saying something is wrong. Straight cut gears in transmissions make noise also. I have run one and have since sold the engine. It's still going strong with over 20,000...

Isn't the harmonic balancer there to absorb the harmonics? Or it doesn't do a good enough job? Has anyone actually done any tests, other than the belt drive companies that want to sell you a 900...

I always hear about the harmonics from a gear drive affecting the valve train but have never seen proof of it. If there are harmonics being produced from the gear to gear setup, then why are there...