I'm not following you. I know the split port gasket it bigger than the ovalport opening, significantly. I know that the ovalport can be fully divided if you put in the material to extend the divider.
But you would have to widen out the tops to fit and then you will end up restricting it down quite a bit as it goes into the cylinders. Granted it will improve cylinder filling at low rpm but what about higher rpm? Will it improve anything or restrict flow?


Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black