Hi guys

I always run 7.5mm reducer on my truck and 7mm on the buggy. The truck needs more power because of the weight, and I always feel that we pull to much on a buggy engine. I think you should try the F11 which is a 7ports on the truck, it's a monster! For about $280 street price, don't wait any longer!!!
Also, I use the oval restrictors on my cars to give more torque and better fuel mileage!

http://www.rbproducts.com/mainEn.php...duit=02011-001