got a 67 corvette big block with the holley 3 deuces. i think my sand cast air cleaner is too low mainly because the intake is designed for the low profile corvette body. this motor will soon be in a 39 deluxe coupe with tons of hood clearance. i can get a taller k&n filter and that will help but i would also like to find 1" aluminum risers for the 4 bolt holley carbs. anyone know if these are available out there? i could sand cast them but i've got enough projects for a couple of years. please share the knowledge... thanks, clemdaddy