I have never seen one on out trucks but there are fittings that have a hex inside the fitting that allows an Allen wrench to be used to install or remove the fitting. On the bright side if there is no hex anywhere on the fitting I can't be very tight.
Good luck
How about using an EZout or other broken bolt remover? If you did get some brass shavings in the hole you could crank the engine over with the coil wire off and flush them out with oil before hooking the guage line up.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
RIP Bob Parks.
1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB repair thread
http://67-72chevytrucks.com/vboard/s...d.php?t=698377