I'm with Todd, a melonized gear is best for the street. If you have time it would be a good idea to sacrifice a bronze gear first. No doubt the cam gear has some scuffing and galling. Running the bronze gear first will help to smooth and "polish" the cam gear before you install that expensive poly gear.I have done it once with success. I am running a bronze gear in my engine. I check it every 2000 miles when i check valve lash. I consider it regular maintenance. I just remove the cap and check the backlash at the distributor rotor. Only works if you dont have the advance mechanism cause of the play it has to the shaft-if that makes sense. Faster than removing the distributor...
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Ray
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