Still talking about a Edelbrock RPM 340 head. This is not rocketscience if you have ever taken a good look at a set of those,on a pair of ancient stock openchambers its a whole other deal.
I just looked at that chamber on a head that's for sale here on FABO. They are dirty and I don't know what valve job they are cut for. If you use a 2.02 valve you can cut the head down some. If you use a 2.08 valve you'll be crowding the top cut, if not getting into it.
