That right there is a difference in the carburetors, 4100 vs. 4300.
If you want wires that look more correct, then you want black AUTOLITE labeled wires, not Motorcraft.
Not so sure about the radio suppression wires on the 68 Mustangs and Shelbys. I personally am using the blue 8mm silicone Ford labeled wires on both my Pantera and my 68 GT350.
I always like to throw whatever I know into a discussion. My philosophy is that even if I am wrong and the part is "incorrect", it stirs up a discussion and gets others involved who would never be involved normally. All benefit from the revealed information and the "corrections".
I'd like to see some input on the exhaust manifolds on the Mangusta's also. I'm not entirely convinced that the iron manifolds all clear the chassis.
The 289hp in particular is a type of a cast header. It does hug the block but even so in the Mustang it requires it's own clutch z-bar to clear it.
Not having a 'goose, but always on the lookout for the one that is destined for me, the picture I posted of the exhaust manifold lends me to believe there are special considerations in this chassis?
I would expect that there are tube headers made for the car at sometime? Those I would like to see.
I discovered purely by accident that the 69 351w cast iron exhaust manifolds are like a larger version of the 289hp iron manifolds. They use a 2-1/4" OD exhaust pipe vs. a 2" on the 289 and adapt well to a 2-1/2" od exhaust pipe.
I have a set here that were "ported", or port matched to a Mr.Gasket exhaust gasket and definitely improve the flow of the exhaust system.
