You’ll need to listen to it for the full answer but the short of it is you can’t get the ports too rough on the intake side, carb or EFI, and the EFI being rough from 3 inches ABOVE the injector to the valve. Above 3 inches above the EFI injector you can smooth it out.
I know from testing mechanical FI that moving the nozzle UP away from the valve was a power maker, but you lost a small bit of idle quality. You could usually make that up with using a higher idle check pressure. So I would think EFI and injector placement wouldn’t be any different.
I think it’s worth noting that Morgan agrees with guys like Larry Meaux and Chad Speier that even the as cast finish isn’t rough enough.
So as FUGLY as it is, and it is...burr finish for me. The question is can I get the right burr finish, because Darin did quickly say it had to be done right. What that means he didn’t say, and I’m not smart enough to have asked that as part of my question.
