When good is not enough, Camshaft time again.

Saying a solid roller isn't up to reliability tells me you're still in the past. They certainly ARE reliable for every single day usage. You may be reading, but you're not comprehending. I said a STREET SOLID ROLLER LOBE. There's the difference. A street solid roller LOBE is much less aggressive and will last as long as you want it to. Not my car. Not my money. That's cool. I hope your undercammed 512 works well.

As to the EFI, I don't think we're necessarily pointing the finger. We're more saying maybe TRY a carburetor as a temp diagnosis tool and "see what happens". I'm in total agreement with everyone that the camshaft AIN'T gonna give you what you're looking for. Even switching to a solid roller. Having said that, that's what that engine needs with the heads and cubes. I hope you find it, whatever it is. But remember this. As you throw all our recommendations back in our faces, you DID come here asking for help and advice. Good luck buddy. I hope you get it figured out.
I apologize if I came across as throwing your recommendations back in your faces. That was certainly not my intent. I only wanted to explain why I decided to do efi in the first place. My lack of knowledge. Along this way I have tried to explain my methodology which is to change the cam first. Sort that out. Then assess what else could be improved. I never negated anyone’s other suggestions and have indicated that I will put them on the list of improvements, TC, Carb were ones I have said I will change if the results of the cam change do not satisfy. My original intent was what type of cam and specs of such. I tried to emphasize that street manners were important and that expectations were not to maximize power at the expense of street manners. Striking the right balance was my goal.

If you are saying to run a solid lobe with a solid flat tappet lifter, I have never heard that. Sorry for my not comprehending. I went away from a solid roller cam because of reliability issues with the roller bearings during extended street use. They are great for max power during racing but many street miles have lead to issues. If my knowledge is flawed with old info, again, sorry for my naivety.

Yes I did come asking for advice and I appreciate all the help given along the way. I had hoped that just because I chose in the past a different route and then tried to explain my decision that I did not come across as ungrateful. I was wrong.

Fwiw, not an excuse but an explanation, I have Asperger syndrome. If you are unaware of it, it is a form of autism that prevents me from “reading the room”, or form discerning what is meant by someone’s connotation or meanings. I interpret things very literally and it means that my responses are not filtered with the normal rationale that normal people do. Evidently, I misinterpreted the responses yet again. Sorry for that. Still trying to get through this life without offending people. Not very successfully.

I should probably close this thread before I offend anyone else. Sorry for the offense I have caused you and others.