The Stovebolt Site Forums The Shop Area Engine Shop timing issues

It hasn't been on the road for the last 2-3 years. Like a dummy I just pretty much let it sit up. Decided to get it going again a couple of weeks ago and had a friend come over to help me out. We ended up pulling the fuel tank from behind the seat to repair a tiny pin hole on the bottom of the tank that was letting gas leak onto the floor pan and dumped about 10 gallons of gas that had gone very bad while sitting up. Got the tank cleaned out as much as possible. Pulled the carb, took it all apart and cleaned it good since it was all gunked up and changed the old spark plugs. The points were changed just before the truck was last parked but guess I should check them again anyway. When the engine was replaced back in 2002 it ran pretty good but I didn't have a dwell meter or timing light so points gap was set with a feeler guage and timing was set to best running condition so I have no idea what the actual values would have been at that time. Last year I bought a dwell/tach meter and timing light as I figured it would be worth having to use with this old truck so I could get it set up closer to spec instead of just guessing at it. As I said earlier, it is the original dizzy so just wondering if that is why I am unable to get the timing set due to heavy wear or do I have other issues that need to be looked at?