Added a few more pics to my above link. Cylinder #4 definitely looking ugly.
But look at this
gem I found after removing the IC. Can you spot the little problem? No wonder I had some bizarre issues with my car. And no, I didn't do the 550ci injector install.
Do you happen to know where the coolant drain plug is on the block?? Lotus service manual say on right back side -- I can't see one? I see something on the left side of the header (facing the header from the back) below cylinder #4 -- seems to have a brass end with a tube coming out the side, is that the coolant drain plug?
Rob.