If i got hard piping from the filter to the turbo and ran an open filter, do i have to worry about running lean?

guys, i need a set of forge pistons..pm me if you have any...thanks!

Does anyone know the turbo exhaust valve id numbers? I got a spare caravan head with G5S stamped onto the exhaust valves. The intake valves have G5 stamped on them but I believe all motors have the same intake valve size, turbo or non-turbo.

http://www.thatvideomagazine.com/newyork/autos/vinny-ten-racing?fb_comment_id=fbc_217648795029682_699660_218170148310880#f357c02b54