Quote:
Originally posted by Simi Stang
Ha-ha!  That's pretty funny man. You must be the first person I've ever heard refer to AFR heads as "junk". Comparing TFS & AFRs straight out of the box...the AFRs DEFINITELY out flow your TFS. I know you ported your current heads...but AFRs are far from junk. 
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Actually an out of the box set of 165's don't outflow TFS heads...they are similar. You can use the "bigger valve in the TFS head" argument but I don't buy it, you can run cams just as large with the rotated valve placement of the TFS. A good port job on the TFS heads will put them WAY outflowing even AFR 205's. AFR's also have an equally crappy valvetrain (particularly springs) unless you pay for an upgrade.
However with that being said, I would never consider either head "junk", they are both great just in different respects.