I need to know what model number carb's I can use on a N/A street port car. Does it have to be a Double Pumper? Holly carb by the way. Thanks.

 

as far as i know, anything works if u jet it right... and its 4 barrel.. make a mechanical secondaries and you can somewhat fly in the high end.

make sure u get the correct or make the correct linkages, or you might not be able to get "wide open" on the carb, and just get.. "some" power out of it.

 

Well, the airflow through a stock 13B NA is about 300CFM or so, right? So assume your street port moves about 400 CFM and pick a carb based on airflow like you would on a piston engine...

Or just call Mazdatrix/Racing Beat and see what they recommend. They might even have it on their website. Hint, hint...