I bought a pair of 1409s for Giggity and installed one yesterday. As you can see from the picture the throttle linkage on the 1409 hangs down further than the Carter.
I could move the throttle back and forth at the helm and I verified the secondaries would open and more importantly completely close before the first test fire.
What I did not realize is the section of the linkage that hangs down below was hung on the intake manifold causing my accelerator pump to stick in the fully engaged position. Upon the test firing I got a major surprise when the engine rev'ed up quickly even though I pulled the throttle all the way back. I immediately killed the ignition and am happy to report I saved the motor from any damage but will need to modify the linkage to resolve the issue.
Anyone come across this issue before?
My TF will not allow carb spacers to be installed because the spark arrestor/air cleaners butt up against the cabin floor already so I am likely going to trim the bottom part of the linkage as it s not used in my configuration.
74 36' TF
69 19' SS
The plates that the linkage is made out of, the arms on the carb, are case hardened. To trim them you will have to use a cutoff wheel and a die grinder, a hack saw blade won't do much more than scratch them.