You Need A Lead Substitute in the gas
Since 1960"s American gas is unleaded your going to need lead substitute witch you should be able to pick up in any auto parts store also i believe Walmart might carry it just follow mixing instructions good luck!
also check the compression at the...
I am 29 I got my first Buick 72 Gs Stage 1 455 when I was 18 I got it from the movie slap shot ya the one with Paul Newman I found the guy who was seling it the acutal movie car so I paid 5500 what a deal even though I just put 10 grand in it last year I got a real fast car and I love it. Since...