check this out i emailed redline to get advise on this issue and this is what they told me:
On 11/30/2016 3:47 AM,
where can i get a Anti diesel solenoid for my weber 32/36------> DFEV<--------------
i was told that the solenoid needs to be{ for the dfev }
not the other carbs that they are not interchangeable.
if possible please provide a link on where to buy thanks

From the office of ,
Bud Pauge
I would disagree with your statments in this request
the solenoid is a band aid for other tuning issues.
we have not supplied or offered this solenoid for 25 years
at one time we supplied a custom application unit
the unit for the dgev or dgv carburetors do not fit or work on the dfev unit
so with that I would ask what is the issue and mostly what is the vehicle application and other function issues like
Poor fuel economy
stalling or hard starting
surging or flooding
a hesitation.
for guidance
I would need to know your current best idle tuning values for the idle speed screw settings , the number of turns in warm to gain your idle rpm
what is the number of turns on the screw
what is the idle rpm
on the idle mixture screw is it sensitive and how many turns out from seated is the screw to find the best smoothest sweet spot for idle
what is your timing and if you use a vacume advance distributor what is the timing at idle with vacume connected and with vacume disconnected if they are not the same confirm the difference in idle rpm.
from this point any additional input would help
where are you located
what is the engine size and application
what is your fuel presure
do you know the full calibration in your carburetor
Main air jet Primary secondary
Main jet Primary secondary
idle jets Primary and secondary
pump jet
important what is your float level
please discrib your issue
do you have actual run on , or do you have flooding with float bowl going empty over night.
please discrib what you can about our issue so we can offer better guidance than you have currently recived.
If you own a true weber there is not avalable a solinoid.
there were Weber licenced copies by holley and Motorcraft these typically are thought to be Webers and are not
typically we can offer general guidance on them but we typically discrib a tuning variation that allows you to tune and disable the solinoid.
On many vehicle application these solinoids are an issue a bigger problem than the situation they solve.
Properly tuned the Weber will not need them.
Please confirm your location and a possible phone contact for future more direct contact if possible
Bud Pauge
Redline