The first question is did you swap over to the early style timing cover? I am having similar problems trying to get my v-belt pulleys working. I was thinking about trying the march set. I am using the stock 5.0 balancer and the older v-belt pulleys line up correctly, but the crank and water pump pulleys hit each other. From my research I have seen spacers for the crank pulley to make up for some differences. I'm pretty sure I have seen them on both Summit and Jegs. Good luck!
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