Stumbling Slant --what is left??

Try and make sure your balancer shows true TDC with a piston stop or something. It could have jumped a tooth.
Not sure how a balancer slips a tooth. I was very careful to get the cam aligned with the crank when replacing the timing chain. Looks like a Doorman balancer is about $130. Also looks like the one off of my 170 will not work:-(.