Why is it so valuable? well, there are only two different ones ever made. D0ZF-12127-C and D0ZF-12127-G, first one is for a stick and second is for an auto trans and they only fit 428CJ and SCJ. It was originally a dual point but being a rebuilt it probably isn't anymore. I can't read the date code which is right below the part number but as long as it falls within the 6/69-6/70 time frame it is worth at least $250 and goes up from there. Pop the cap and clean the rest of the number so we can see what it is. If it is complete and correct (it does not look to have teh correct advance but i can't be sure) it would be worth $500+. Hawkrod
Hawkrod
39 Ford Deluxe Coupe
59 Tbird 430
60 Lincoln Premier
(2)62 Tbirds
(3)68 Cougar XR7-G's
69 Cougar 428CJ 4 speed
77 1/2 Ford F250 4X4 w/460 swap
86 SVO mustang
76 F250 Crew Cab
1969 Mach I
look at my cars past and present at superford! 
