Checked the cam and lifters on the 350. No super obvious wear on the cam or lifters, compared it to the 204/214 cam on the shelf. I can see some pitting on the lobes on the ends but none round, lifters are flat, the plungers move right back and push easy, maybe too easy? Poured VR1 20W50 all over everything, works like a motor honey in this weather sitting out in my shop. It sure sounded like a lifter, steady tick and certain speeds, mostly not under load. It was there with the manifolds and shorty headers, was sign of a leak under the middle of one manifold. Going to clean the intake surface and attach the reverse rotation water pump. Using the glycol resistant Permatex water pump and cooling RTV and using their Optimum Black on everything except the Sanderson header flange, probably Copper RTV on it. I have a much better air deflector to go the 88, hopefully that and the GN flaps help it run cooler. Also changed the flexplate, this one says Metric but the weight looks the samez pretty sure they all are. I will grab the oil filter adapter off the 260 and get it on as well.