I found the perfect set up for me was a factory cast iron semi high rise, SMI Q jet with electric Choke and a 1/2 inch spacer on top of the carb. This works perfect with the stock cowl Induction air cleaner. It puts it right at the perfect height. You can?t beat a SMI Q jet with electric choke. The cast Iron semi high rise Intake is a great performer to 5500 rpm