quote:Originally posted by PanteraDoug:
This is normal for a Holley. As the fuel dries, it condenses into a varnish. The varnish will eventually dry into a glue.
Yes i agree, i've experienced this phenomenon myself many times and that varnish can be a so and so to remove as it also forms inside many small passageways inside the metering blocks and carb body.
There is no really simple and easy solution to it other than as Panteradoug says "start the car up every 10 days" or so, or be prepared to rebuild the carb before driving.
The solution i came to in my instance was i changed to EFI. The fuel system is sealed and there is no evaporation between starts, so no chance of gum and varnish formation.
I left one car for a year one time and when i did go to start i it started like it had been run the previous day !
You don't have to go for elaborate multi point systems there are a lot of bolt on throttle body setups available these days that will just fit straight on where the carb was.
It will have the added benefit of that you will pick up considerable extra power and driveability if tuned right.