Those ought to flow plenty of air.If you still have doubts,you probably have room under the hood to stack two elements per filter.If clearance is questionable,get a paper cup and cut it to the same height as the element and set it on the air filter you think is closest to hitting the hood,then close the hood. If it doesn't smash the cuo,you're good to go. Brush a little gorilla snot on between the elements and let it cure a couple of minutes before you install them on the carbs.That keeps them from trying to slip sideways or leak between them. I have also used a slice of big diameter heat shrink about 3/4 inch wide to hold 'em together,but Haven't had any of that stuff since I left the mine job,years ago.
