The HEI vacuum line goes to the carbs vacuum port.If im 90 out how do i fix this issue do i take out the distributor and turn the gear in the block and put the distributor back in or will have to start fresh and put his engine back in tdc.Or like some of you guys said plug the HEI vacuum port and put the car at 0 or 4 degrees advance and plugin the vacuum line and then adjust the idle.Any sites or video that you can post to help me out some more would be great too thanks for you guys answers.