Cyl Head info needed !!!

Unless you are forced to run them by class rules or just really like the idea of running a stock casting it will never be worth putting the $’s into them to get to that level. I view the money I spent on porting my x heads as money very well spent. That being said I wouldn’t even think about an X head if I wasn’t forced to run it. Think of what you could do with $2800-$3000 and a better casting or clean sheet of paper?