i will reinforce the idea of checking for vacuum leaks. My example is after Hot Rod Lincoln and I performed a head gasket turned valve job, I thought it prudent to perform some good old fashioned preventative maintenance. Of new fluids, cooling system hoses, spark plugs and ignition...the one thing I have overlooked for 50 years of ownership was the vacuum hose from the intake manifold routed through the firewall, up through the A pillar and supplying vacuum to the wiper blades which had ceased working. Talk about 77 year old hard fossilized rubber!!!
