crossflow porting results in Crossflow Posted September 20, 2018 The trouble with iron head is the runner and chamber design are ordinary when compared to alloy heads and the iron takes more effort to port. I think they are the main reasons no ones puts the effort into them
crossflow porting results
in Crossflow
Posted
The trouble with iron head is the runner and chamber design are ordinary when compared to alloy heads and the iron takes more effort to port. I think they are the main reasons no ones puts the effort into them