Again probably not what you want to hear, but i had one awhile back that was stuck at the block under the intake. I ruined the distributor getting it out. It was a cheap one so no biggie but looking back i should have cut the oil pump drive and pulled it up with the intake , i believe that would have worked. Bad part is there is no way to access where they sick at inside the engine , so it makes it tough to spray or heat etc.