[Stan Weiss]

Originally Posted by GOAT8U2

For a Ponti head newb like me that reads a thread like this...

What's the most a High Port cfm has shown without moving the valve?

Is the Tiger 2 the newest version or is there something coming out after the new foundry team up?

What is the Tiger 2 rough max cfm without valve moved?

Everyone still agree cfm x2 is potential power for an engine on gas? That dyno chart looks higher than that if they're mid 450cfm heads.

Thanks

I like to use 2.2 but any number is just a very rough guess.

John's head were 466 so ► 1134 / 466 = 2.43348 I have seen dyno sheets for other engines around 2.5.

Calvin Hill got 420 cfm from KRE HP with a 2.20" intake valve.

Stan