I have some heads I got 2 weeks ago and now just started pulling the valves out but I see one seal was not seated and I'm having a hard time trying to get it to come off the valve guide.

never seen that - you mean if you pull with needle nose pliers it won't come off?  yank it without scratching the sealing surface the seal slides onto.

I pried mine off with a forked end door panel tool.

Edited July 15, 201312 yr by Crazyeights

never seen that - you mean if you pull with needle nose pliers it won't come off?  yank it without scratching the sealing surface the seal slides onto.

I ended up doing this, it was pretty easy but it was better after I soaked the heads.

Best way?   This tool.  http://www.jbtoolsales.com/schley-products-92350-valve-stem-seal-removal-pliers-narrow-access/?gclid=CMa5g4zHw7gCFcNcMgodwzUAxQ