Quote: I'm not trying to knock what you've done. I hope that doesn't come off that way. I'm just telling you that you should figure out what's wrong so you can get the most out of your combo.
If this one made 470hp to the tire, it probably makes 550~575 at the crank.
Just look at some other combo's. Here is a 340" with unported w9's that made 602hp on pump gas.
There is no reason why your's shouldn't make more power then this. Even if this one has more compression, your heads are MUCH better then an unported w9.
Like I said... sorry if it came off like I was knocking you. I was just trying to help.
That is all great, but you are missing one important part. Those are 48 degree heads. They flow as much as mine out of the box and can go much much higher.
