What to expect $$ wise for some head work

Why do you hate to say it, my advice is pretty sound in the performance dept.

Also in regards to the homemade flow bench, what do you plan on using a Shopvac and maybe some water and vinyl tubing. You know there is a reason something like this cost good money

http://superflow.com/flowbench/sf1020/sf1020-lg.gif
I would say the chances of someone reading a book and producing a good head that out flows stock and every port and is the same on every port is 1:10,000 if not more