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Intake port volume 198cc Air speed was good meaning close to 300

While at it flow tested a Torker II as cast bolted to these heads before and after port work.

before porting heads--------- after porting heads
----- lift----CFM-------------------------CFM
----.100----- 68----------------------------68
----.200----142---------------------------143
----.300----192---------------------------195
----.400----221---------------------------227
----.500----229---------------------------242
----.600----229---------------------------250
----.700----229---------------------------251


The Torker with about a .550 lift cam and good exhaust should be able to make peak power
514 HP @ 5300 RPM with 400 cu in engine
500 HP @ 5600 RPM with 383 cu in engine

Either would rev higher but power would be falling off

bump