360 BALANCING

Its not a belt I dont have a dust cover on it yet. It sounds like its coming from the back of the block/ bellhousing area. It always ran rough and the shifter shook. I chalked that up to it not running right, timing being off, running rich, plugs fowling. The more i think about it it ran smooth before the super charger. Either way im hoping to sell the super charger to pay someone to fix it. Im tired of laying on my back on cold cement. Ever have one of those cars that your just tired of working on ? If its a spun bearing it just might find a new home. I have my eye on a 69 barracuda i would like to have. I just might take it all off then see how it runs. It shifted fine & it has good oil pressure.