That shield was it for sure. Took her for a long drive today and it was really quiet till about 50mph and then a slight vibration kicked in. Nothing serious but noticible. I'll get to put a timing light on the new engine on Friday and will see how close the timing is. Might be the cause of the roughness. The new HEI dist. and Fenton headers should be a real plus to the old girl. Thanks to Dave and all you guys for the help and compliments. BTW, my bride picked the color combination...maybe Coors will send me a free beer!