Ignition coil

[Petes L48]

As William stated - the 270 coil is only technically correct for the 1969 Z28 with ducted hood.

Ah, okay.  So the Ignition Coils paragraph under the Engine section appears to be incorrect.  It reads:

67 V8:
1115267 - used on many applications including LF7(base 327), L35, and L78.
1115270 and another coil (possibly 290) - used on L30 and SS350 cars. It appears that the ignition resistance wire changed from 1.8 ohm to 1.3 ohm in production and so the coil may be an early vs late usage.

Looking at the 67 AIM under UPC 6 Sheet B5, it appears the coil assembly for V8s went from 204 to 242 and then 267. 

[KurtS]

I generated that coil listing - it is correct. Bryon and William's comments are about 1969 usage.

Those other two coils are before production started.