[Quigley]

Here's what I did. Used Trick Flow stainless valves for 429&460 Ford Trick Flow Heads. Part#TFS54503212 with 13160-8 10 degree keeper and 748-16 Retainer. The valves are.080in shorter than stock,which doesn't cause any problem with the spring and used a 11/16 lash cap on top to add length,part #621-16. Install Bronze valve guides part #VG-7006R . Adjust rockers for stock clearance. Hope this makes sense. Worked for me to get rid of the sodium fllled valves. Dave