I seal the crap out of them

And every gasket, except those in the oil system. I like "The Right Stuff" best these days. The silver colored aerosol Right Stuff matches the color of aluminum nicely on the ends of the intake.



1912 Model T Ford touring Salmon (ugh!)
1913 Model T Ford Touring original Black paint
1915 Model T Ford Roadster Black
1915 Model T Ford touring Black of course!
1967 Cougar GT 390 Cardinal Red / Black
1968 Cougar GTE 427 Augusta Green / Saddle
http://www.supermotors.net/vehicles/registry/15029/50071-2