The inside bolt on those intakes are a bit of a pain... but have patience and it's an easy fix. Or, just get a swivel socket and it's easier to get to that inside bolt.
- Loosen the carb rubber on the lower section
- Take out the 2 bolts and remove chrome intake runner
- Remove old o-ring, clean area, and put in new o-ring
- Replace runner and resnug carb rubber
- Have a brew of your favorite flavor
Maybe 5 - 10 minutes per runner?? Not bad at all.