OK, for those of you interested, I have pulled some flow data off the internet for the new aluminum Edelbrock Cleveland cylinder heads.
The data is presented in comparison to the CHI 3V cylinder head.
The heads were flowed on a Superflow 1020 flow bench. The Edelbrock head was equipped with 2.055" and 1.600" valves. The CHI head was equipped with 2.150" and 1.650" valves.
The Edelbrock flow numbers are very good below 0.500", but just like a cast iron 2V cylinder head, they hit a wall around the 1/2" mark.
enjoy! George
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