I have only had one tunnel ram before. Weiand w/2 4's. It was great for show, but it only performed well in the higher RPM's (also a street application). Being yours is a street application, my opinion would be that it is much easier to tune & get performance from a good manifold/single carb set up. Tunnel Ram's will look cool on the street, but you will be working harder to to get it to run right on the street based on your set up... which if your motor is not built to handle the extra cfm's, you will be drowning it & getting less performance. What is the motor set up & drive train? Scooter