Hood Scoop Seals

How do you plan on makin an intake with 2x4s??? :-k won't the gas eat away at the would after awhile?? How much rtv will you need to get it to seal?? How are you putting it together? With glue, screws or 16 penny nails??? :banghead: ok I'll shut up now.... :D

The trick is to use marine grade wood :D .