I'm new to this soo bare with me... i just took my 4.6 appart and found out it comes stock being ported.
can I gain more if I ported any further? and will polishing it make much of a differnece?
i came across an air intake that uses a metal tube that runs to the front of the frame then has the air filter at the end. does any one know if this has an improvement on engine performance.