Curious what afr 315cc heads and 741 cam would gain horsepower wise? With slightly under 10.1 compression

That would be a upgrade to a roller cam and aluminum cnc ported heads

550-570hp,,540ish tq

467.9 on premium gas.

imo the 315 cnc head is not the head for a 454.i believe a 305 with cnc chaimber would work great.a 741 cam would be good but for the best cam i would call bob madera at marinekinetics.a lot of things in the setup can change what cam works the best.

What would you hope to accomplish by doing this?

Not blow it up if you got a bad tank of gas.

454 is a great foundation for a set of peanut butter ports.

Being that this is a tech section that people come to for information to help them with their projects, I think it's beneficial for people to explain themselves, right or wrong, so that everyone can learn. That's why I was asking what your thought process was on why he'd want to run a tighter lobe sep. I think, by your reply, that you've got it backwards. It seems to be a common misconception on the internet that a tighter lobe sep will decrease cylinder pressure. This is wrong. It will increase cylinder pressure, shorten your power band, and move peak torque to a lower rpm. If you have a different theory, please elaborate. Everyone benefits when good technical discussions take place. I'm laying in bed with a fever, so I need a distraction. Lol

I was thinking more along the lines of trying to help a poor cylinder head out that's going to have a hard time keeping the fuel suspended in air as it travels through the port and in return keeping it out of detontion. Right or wrong? Like I said not the expert. Please enlighten me on this theory.