Spark plugs are white! Running lean? how to adjust timing?

[chris91LX]

For God's sake don't try to adjust your timing by the idle! If your adjusting the timing enough to notice a change in the idle you've adjusted way too far IMO. Use a timing light or pay someone to use it for you.

You should be able to fit a socket or small wrench on there but there is a distributor wrench you can get that is designed for reaching the distributor bolt.