Got some ideas in mind...Anyone ever done this and if so what would the performance gains be?
Carbide is your friend!!!!!!arty018:i might just have 2 break out the dremal
it helps just take your time! my valve bowls and exhaust runners where ported when we did the head work! so I just gasket matched the head to exhaust then cleaned the castings and runners on the manifold, especially 3 and 4 as you can see in the pics how restictive they are, just be extra careful on the humps in there (thats where the holes were), but what you want is to get the walls or rough edges out of there and allow the exhaust to flow smoothly as possible, then the exhaust, I just basically gasket matched and cleaned about an inch or two down in there!Yeah im just trying to get this 66 lit as fast as possible i love the charger but i hate the lag so every little bit helps