The larger summit cam should work nicely with Stealth or E-street heads.I’d like to tag onto this conversation. I’m looking for a top end kit for my 67 R/T. I see a lot of kits for 1968 and newer, but not som much for earlier years. It has a 440 and it currently has a nice smooth lobe to it. I want to keep it that way. I’m using it for street driving and not racing. Recommendations are appreciated