Originally Posted by
BermyDomRepRC
Thanks also I know fuel milage depends a lot on throttle finger but with the 8 mm venturi won't that hinder fuel milage as well? what other pipe could i try with that manifold ?
Manifold is more critical then pipe.... the 41021 is quite long and because of that it doesn't work well on the top end ... The bigger inserts do use a little more fuel, but not so much that it cause you issues, especially if your finding issues with your current lack of top end...