Ye
The best thing you can do for a 2F is the basic maintenance and don't compare it to anything modern. Drive it like it was built to power a fork lift in 1985.
I'm trespassing in the 60 forum for old time's sake. Coincidentally I was just thinking today about my old FJ60 and all the money I wasted on the boat anchor 2F. I eventually did put in a 350 and I giggled every time I drove it. I should have done it right from the start. There is no upgrade that will get the 2F to perform like a 350 but there are 1000 ways to empty your wallet trying.
The best thing you can do for a 2F is the basic maintenance and don't compare it to anything modern. Drive it like it was built to power a fork lift in 1985.