on the street ? it wouldnt work well at all. if you look at the manifolds they have rpm ranges. a tunnel is for 4000-7000. you cant really drive around with that power band. i know someone who put tight secondary springs in the carbs. they effectively turned it back to a double pumper, and limped around a large single plenum. so it was for looks i guess.

+ tickets for driving without a hood, or obstruction > 6" would add up.

the performer type manifold works great on the street. do you want to bog, or burn rubber ?