Hate you had all those issues. I had similar problems when I first got my 51 back on the road 3 fuel pumps in less than a month. I think it has a lot to with with all the Chinese parts we're getting these days. I also had a leaky distributor gasket on a 261 once and I wound up cutting one out from the side of an oil jug. Sounds crazy but it worked! good luck with your repairs