So….more header talk….this had me scratching my head
A lot depends on the arena & rules.
A restrictive rule set on cylinder head ports leads to other areas of development. Perhaps over taxing a parts ability, let’s just use cylinder head flow here as an example, can be useful but how far can it be done. In racing, that criteria is often more than what a street bound daily driver and medium level powered street and strip cars would do. Prime examples I guess would be super stock guys or the FAST class?
For a Fast racer running in the low 10’s with stock heads, intake, carb & exhaust manifolds, is amazing. It’s not exactly the route I’d take. They demonstrate it’s possible, but at what cost dollar wise and drivability wise? Which is subjective & one’s opinion on what they think, see and feel.
I remember reading how a fella installed a super stock cam, complained about the plus 1,100 minimum idle quality and rpm.
As a street bound guy, porting an iron head to within an inch of It’s life is t where I’d want to spend my time and money but would rather purchase & install a TF head. Some may point out that I’m not taking advantage of all the head offers and that’s OK so long as it performs to my expectations. I don’t always see a need to fully exploit the head that far.
The racers of the above classes make the most of what there rules say is ok to use. They can brag all the want. Sometimes there thought pattern doesn’t fit your thinking, your wallet and nor are you confined to there rules. Which may be quite expensive.