It's currently none on the market.
But the old flat valve versions that had 32mm/28mm valves use to flow 120cfm @ .500" lift.
While the hemi style billet head had 34mm/29mm valves and flowed 150cfm @ .500" lift.
A cast Hemi head, the most I heard of is 121cfm. But that was tested way up to .600" lift. Which is way above it's operating level.
Try to get the best numbers by .400" lift.
Now as far as a billet head goes, I have seen some really good numbers.
I had a few friends run a dry kit, and 1 guy ran a wet kit. The wet kit didn't work so well.
Most of the guys out here run M1 or M5. A couple people run nitro mixed into there alky. But you have to know what you're doing or you could blow your engine up.
The more you build your engine on...
First off, no one makes more power than me. Those 2 guys are very good though. Gary knows alot more because he's been at it almost as long as me.
The 30hp combos they building now I was building in 2008. Ain't nothing much changed since then except the Predator being made.
But ain't no...
I'm hardly on here any more, mostly on Facebook now a days. So if you want to contact me. Find me on Facebook, just type up Minidragbike in the search bar and I will pop up.
Send me a message on there, or if you need my number I can give it to you to call or text me directly.
Anyone looking for me or trying to send me a message, I'm hardly on here any more. But if you have a Facebook page I'm on there all the time. Just search for Charles Mosley Minidragbike on Facebook and you will find me, and send me a message.
You should have tested my unwelded and welded 32mm intake heads. My milder 28.5mm flows great for almost anyone, but the added work I do with the 32mm intake so far no one if close to my numbers. And I have flow numbers from 2007 at 100cfm.
Most of the heads I have had tested are very mild...
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