I did mine a little while ago but have no pictures of it ported. It was not to hard but I took my time and used a spare l26 LIM I cleaned the whole thing set the new gasket on the used a thin sharpie to mark the gasket and smoothed the runners opening the exit up to the mark I made. You do not want the exit to be flush with the gasket you want it to be matched to the heads or you will have turbulence from the transition.
The measurements of the stock head inlet and what you want the LIM to be is 0.9" by 1.9".
