Stop in for a cup of coffee

WV64Signet said
What's the deal with these fitting the 64 maybe?

[FOR SALE] - Headers - brand new from Layson's - A-Body Small Block (purchased for '65 'Cuda 273 Commando). $400 plus shipping from Clearwater, FL (paid $615).

Those are the old Spitfire headers. They fit and work but they exit in a strange place right towards the torsion bar. They flow a little better than 340 manifolds. I think Doug's are your best bet.