Old gas turns bad and leaves a varnish like coating on intake valve stems that does not burn off. It gums up in the guides. I have personally seen it twice. If you only have a couple gallons of bad gas you can usually get away with filling up with new gas diluting the varnish.

I have FE parts for sale that I can trade or willing to buy any kits you may not be using. Look in the all parts for sale. 1959 Lincoln 430 MEL. Car build was November / early December 58. has an A/C fuel pump. Water pump starts with 575. Ask for any other needed info.
Thanks

Hope this is ok, original poster is a member here. Although the 59 here was not effected, I thought I would copy and paste the below post from another site: Difficulty Of Distributor Removal- Early MEL 1958 LINCOLN AND MERCURY SERVICE BULLETIN NO.19 CAP SCREW INTERFERENCE WITH DISTRIBUTOR REMOVAL On...

I have a couple of distributors out to compare. The left distributor is FEU-12127-J from a 1958 332 FE, the right FEW-12127-H from a 1959 430 MEL. They use the same FEK-12378-B vacuum advance and seem to be the same internals. There is a difference in gear to seal distance with the FE being greater....

Good afternoon, I have an LX transmission from what seems to be a 59 Lincoln 430. How does this transmission compare to a C6? If used in place of an FE C-O-M will the gear selector read correctly or be a little off as a C6 would be? If this is a strongest pre-66 automatic transmission, I'll keep it ...

Hello, I came down with a Ford & Lincoln big block adiction in JR High when I was given grandpa's / dad's 65 F100. Around that same time I found a 1968 Motors Manual and became fascinated with the power / torque numbers. After years of running FE's I finally have a 1959 Lincoln 430 / LX transmission...