Compression test & Oil on boot of plugs wires

[8TurboT7]

Well it been a couple months now since I blew my HG's and now I'm taking it apart after letting sit, but first I want to do a compression test. What is normal compression reading for these motor? Also when I pulled out the spark plug I notice that on the white part of the plug had oil on it and also there was oil bleeding out the top of the boot of the plug wires . Any input will help. Thanks

 

[Chuck Leeper]

Looks as tho the seal/crimp at the base of the plug is leaking. Detonation pressures high enuf to blow head gaskets, may well have blown the plug "gaskets" too...
Are all 6 this way?
Valve cover gaskets good?
Iridium plugs??? What heat range?
140 should be a good ballpark #..
Look at the bottom of this thread.. There's other, similar posts/??'s

 

[8TurboT7]

Are all 6 this way?
Valve cover gaskets good?
Iridium plugs??? What heat range?
140 should be a good ballpark #..
Look at the bottom of this thread.. There's other, similar posts/??'s

No, only #1 & #2 the rest seem to be fine. Yep their Iridium plugs, the heat range is 4.