I'd be interested to find out if there is a difference between carbed or FI heads. Never heard that before.
That said, the older SE heads like these ones are not worth changing over to.
I forgot to mention that they are HTCC heads. I read some old threads on an other forum that said they made decent torque (95) with flat top pistons with 95" cylinders. I don't know the cams used. I believe it was call a hippo build.
I don't know anything about the HTCC heads, but the HIPPO build used the old (I believe they were 80cc) S/E heads (16952-99c), with an S&S 570 cam. Even with flat top pistons it had about a 10.1-10.2 compression ratio. I had the setup in a 06 streetglide a couple of years ago, and it was an injected bike.
Oh yea, to use the heads, I had to change the intake. I believe they changed in 06.