pwk's vs flatside

[jeremyshee]

just wanted to know if there is any performance difference between pwk carbs and flatsides. just needing a set of 28's for my vitos motor and need some good advice. all I really do is rip around on some old strip mines and race a little, hoping to rip past these pos 450's around here. any input would be great.

[possum]

For your use you will not notice a difference.