Cheap flow kit for those trying to increase usable power and torque.
http://www.knfilters.com/Racing/stubstacks.htm
http://www.mpgheads.com/portplate/portplatedetail.htm
In addition add a 1" phenolic carb spacer, ported plenum, aids in package and insulates carb from becoming a heat sink.
In total for under $200 bucks you have noticeable gains.
Planned project for me!
I will post pics as I get to it in the near future.