Re: Head porting - please explain?
also what you port a head, you put bearing blue on the intake and exhaust sides of the head and bolt the manifolds to the head then take them off again. this will show any places where the manifold and head dont line up properly and cause a slight protrusion and slightly restrict the flow. then you use a die grinder to open the ports up to get rid of the protrusions on the head and the manifolds.
also you dont get rid of all the casting dags on the intake port because they help cause the swirl effect.
1996 EL Fairmont - Pioneer MP3 Headunit, JBL splits, JBL 6'' 3-ways, 10'' Xplod subs, lowered, 16'' EL XR6 mags, K&N air filter, Pacemaker headers, 2.5'' Redback zorst, dba sports rotors, dark tint.
soon to come.......BA XR8