Do any of you dohc intech owners have any experience with the
imrc [intake manifold runner controls] getting so dirty on the plates of the runners i mean real dirty full of carbon & soot. On my 4.6 32 valve it idles very smooth & has alot of power but the
imrs are not as clean as i thaught they would be, this seem to be across the board, does anyone have an idea of how to keep these things clean,any tips or tricks?
turbo ted