Holly carb

[33 IMP]

A couple days ago, I drained a fuel bowl from my Holley into a metal cup made from a soda can. I was doing some tuning on it.
I set the cup on the backporch, out of the way, but in the sun, pulled the carb and started working on it.
A few hours later, I looked for the can. The gas that was in the can was gone. Lost maybe four ounces of gas, a full Holley fuel bowl worth, to evaporation in only a couple hours.

 

[ricks_RR]

good info

 

[33 IMP]

What I found interesting was.... I had a gas can with a couple gallons of what I thought was diesel, but it had been months ago that I bought it, and it might have been gas for the lawnmower.
On the heels of the gas evaporating episode, I decided to try to find out for sure. So, I put a few ounces in the same metal cup in the same place in the sun
Two days later, it was still there. Diesel! Stuck the two gallons in my pickup. (Like a lot of things on this old body, my nose don't work too good anymore either. I should have been able to tell by the smell, but I just couldn't !)

 

[axxmann]

Time for a carb rebuild

New less that 750 miles. Car starts right up and I see no fuel anywhere.

 

[Ronnman]

Axxman - Do you have an insulated spacer between the carb and the intake. If not you may want to install one. It keeps the carb a little cooler And cooler equals less fuel evaporation. If you are not running headers, do you have the heat crossover valve still installed on the passenger side manifold? Does it move freely? Also, if Michigan is like most states, the oil refineries change their gas formula to evaporate faster during cooler months. Did you recently fill the tank?
Ron