Does anyone have a diagram for installing a tack guide (internal lines) on an F-16?

can you be more specific?

Are you talking about one of these?

If you are using your existing pole, the tack line pulley and restraining line eyelet mounts are obstructing the tack guide.

Unless things have changed, you will have to drill 2 holes for the restraining lines (pictured in the previous post). If you wish to run an internal tack, you'll need to install an entrance point. Further, if you are running a single line system, you'll need an additional exit point for the halyard run.

You are welcome to check mine out. It's at Ed's but we are leaving Sunday.

Very helpful guys. Heading to the store now to get some parts.