Good call having the dist gear professionally installed, of course a guy CAN install his own gear, but you can also screw it up. Easy to see it's a roller cam from the profile of the lobes, very round and not so pointed like a flat tappet would be. Roller cams run a softer gear, like bronze (or the new plastic). Looks like the engine builder had the right gear the first time. An example of why I trust the engine builder over the cam supplier. Of course, even they make mistakes, it's tough to be 100% correct 100% of the time.
If Comp Cams said the dist gear is what wore out the cam gear, that would be an accurate statement in this case. Neglecting the fact it is THEY who recommended the dist gear of course!
