360 timing

Idle timing is still set with a light or guage (probably a light unless you read up on doing it with a vac guage.) Total or "All in" timing is usually set by limiting the advance weights in the distributor so it does not go way past your desired total timing when you set your base timing advanced as far as these engines like it to be. Generally, you want the timing advanced as much as possible without the engine kicking back against the starter when the engine is at max normal temps. Then you want to find out what it takes to limit the total to your desired "All in". After all this, you reconnect your vac advance (if you use one) and you may also have to adjust that to eliminate mid throttle pinging, and even sometimes for maximum travel or when it starts coming in. Under light throttle conditions you could actually end up somewhere around 50 degrees total. This is when the best fuel economy happens.(light throttle and tons of total advance)