Help me make a decision

[mpbond]

These are the systems that I am looking at.

http://www.denniskirk.com/jsp/product_catalog/Product.jsp?skuId=446175&store=Main&catId=&productId=p446175&leafCatId=&mmyId=2509

http://www.denniskirk.com/jsp/product_catalog/Product.jsp?skuId=446156&store=Main&catId=&productId=p446157&leafCatId=&mmyId=2509

http://www.denniskirk.com/jsp/product_catalog/Product.jsp?skuId=447560&store=Main&catId=&productId=p448749&leafCatId=&mmyId=2509

Which one of these would you choose? Or, is there something else in this price range?

Also, what main jet would you recommend for a 400ex carb with one of these, a K&N, and no airbox lid. Pilot jet is a 42.

[m0t0xk1d]

i would get the first supertrap. its a reverse megaphone so its good. and thats not a powerbomb header on the fmf and i would get with a 130 main