I agree with you Dwayne, I'd love to do that.
I betcha they wind up DARN close like less than 10 HP/Lb/ft close.
A customer walks in and says I
want a 500+ HP 408 and aluminum heads. I'm not gonna instantly sell them a 408 with TF's. I'm gonna sell him a truly CUSTOMIZED (investing myself-cuz I'm passionate about this stuff) engine with heads that are the best VALUE and will also meet their expectations. The upshot is substantial --meaning TF's are not even close in price to SM's or Eddy's -so I can work and earn $$$$ to meet the HP goal that a TF would provide.
In short if I can make an Eddy work as well as a TF and make some $ doing it then as long as I'm not rushed or lazy I will take that route. Or if the customer specifies the TF's I would use them I should add.
From what I have seen the TF's even with their gorgeous chambers and gorgeous CNC work and wicked flow rates should make A LOT more power than what is being reported.
We should start yet another thread about cylinder head flow rates and why a 265 cfm head makes more power than a 300+ cfm head. I've witnessed it many many times. I am getting a good on handle on what REALLY makes power. The other side of the HP coin is --HOW hard does it accelerate? I have been in high HP rides that didn't accelerate nearly as hard as a 500 HP package. J.Rob