One of the things I do if I have a bolt on a jet that is barely moving or isn't at all, try spraying a whole bunch of wd40 or other grease as far onto the shaft of the bolt as you can. If you hammer it out about 1mm, spray more of the now-exposed shaft and hit it back in. Rinse and repeat until it comes further and further out each time. It sucks, but its worked for me on several occasions.
| '05 4.7L V8 | OME HD | Matrix 4xGuard | 4xGuard Front Skid | 265/70/17 TreadWright M/Ts |