Shawn you are exactly right.
That's why I posted IMO it was a mistake to get the motor without being dynoed from the builder. Mistake #1
I know it has been stated dyno wasn't in the agreement. Mistake #2.
I'm not concerned much about the numbers on the dyno as I am
about getting a running (with a base tune) engine. Things happen no matter how good the builder is. The dyno gives the builder a chance to find any problems and fix before it leaves his hands.
IF the motor was way down on hp I'm sure almost any builder would correct the problem ( even if it was a cam IF cam chosen by builder)
I've seen dyno runs pick up 100+hp from 1st to 4th run MANY times.
Different builder dynoing a new motor brought to him by an unhappy buyer is not ever going to look go for the original builder.
I'd be willing to bet I could get more hp out of that motor on my builders dyno, but I seriously doubt those heads (and other things like wet sump etc.) will make 1,100hp.
Let me add something about dyno results. I had 548 built using Merlin heads. I picked the cam, it made 798hp. Engine builder kept telling me he wanted to use a bigger cam. I raced that motor for a full season and at the end of the season we changed the cam. The new bigger cam made 868hp and I was tickled and almost didn't believe it on that motor. Long story short my truck SLOWED down a good bit (more than a .10 ) and I was NEVER able to get it back with that cam.