Ford Block Letter Plugs
I have four NOS Ford Block letter plugs, Thats all well and good, have been told they are for the Early 32 V8 ? Here is the kicker I think, All of the bases are the exact same as the 30/31 3X Model A Plugs..All have never been taken apart as far as I can tell, no wrench marks not even a scratch.. Others say the C-4 is the correct one, HELP !!
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