Vapor lock and fuel boiling

[big gear head]

I was putting Shell gas in my Camaro and thought that it was the thing to do. Didn't have much trouble with the local Shell station, but I took a road trip to Somerset and had to get gas before heading home. I found a Shell station there and filled it up. I didn't even get out of town before it vapor locked and I was sitting on the side of the road. It did it 2 more times before I got home. The alcohol free gas at the local Casey's works well.

The '78 Caprice has the thick gasket under the Q Jet carb, but still vapor locks every time he drives it. All of the fuel lines are original. The guy who owns the car is blaming me for the vapor lock issues. I've told him to get better gas in it, but he thinks that there is nothing wrong with the gas. He says that he didn't have any problems with it when he was driving the car 3 years ago. He's telling people that I messed up his carburetor. This is why I'm trying to find some fix for the fuel that he has in the car now.