ProComp/Speedmaster aluminum heads

Bottom line, people are curious. They want to see/know. And that’s that. From here, feel free to preach until your heart bursts, or your fingers give out. I really don’t care and I don’t have a dog in this fight nor am I going to get into this. I’m curious like other people. And that’s that.

If you feel the need to express yourself and explain things, tell it to everyone.
Rock on bro, the limelight is yours to shine in or make excuses and/or complain.

yellow rose said

My question is what is that number telling you?

I've seen heads that had a legit 30 CFM more than the exact same head and make less power. Seen that many times. There is no way to quantify things like turbulence, localized reverse flow and many other things. So really, looking at flow numbers only is just for marketing.

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