It does run better with all the ductwork removed. I use a big UNI filter under the tank and it draws a lot of air. Have to clean the filter a bit more often and oil it up after it drys good.
rockenrobert
gato see the world, it will only take a minute
This backfiring usually occurs when blipping the throttle during decelleration when a lean condition is encountered. I noticed it after installing the cat by pass.