Don't know for sure but it aint anywhere near four.
Go ahead and do four just for the fun of it, as it won't hurt anything.
I was just making the point that I didn't think it was necessary for it to run decent on a budget.
I just slid the sprockets on straight-up... you think I should try 4* advance? Will it make a noticeable difference? It had lots of grunt before and got decent MPGs with the stock silent chain, that thing had about 1" of slack.
