I was a bit upset with the 286 cfm in the beginning since I told him I needed the “magical 300 cfm” and he chuckled at me. I’m more then pleased with the 286 cfm.
I’m shocked that’s all they flow because I had mine up over 300cfm on a “calibrated” flowbench with a 3/8 stem 2.02 intake valve. With that said you have to understand W2 heads. A stock head on my bench hit [email protected] then fell on its face. When you port them that number only goes right up along with the upper numbers. They are an awesome head.
