I'm running a 14" x 4 usg filter with a 1/14 drop base I have no room
http://www.knfilters.com/search/prod...x?Prod=85-3549

My current setup has vent hose running to the valve cover? or vise versa Is that a coast guard saftey requirement or a performance enhancement?

You need to be careful about the smaller flame arrestors, they don't flow much air. I called K&N and their 9" units don't flow enough air for my motor. I have a big cam and a 2.5 powervalve, a poor flowing flame arrestor will cause the power valve to close.

Not a requirement, but it is a good idea. It helps pull vapors, moisture and even a little negative pressure in the crankcase.

So who has the best polished flame arrester for the money. I need a set up for dual holly 4150' Is it Hardin? Teague? CP Performance? Or does someone else offer the best for the price.