Thanks guys. I have the owner's book, but I was just curious what other people had run into. I'm going to have to work out a spacer, since the linkage on the carb hits the manifold with it mocked up. I'm going to get a rebuild kit and go completely through the carb. I'm planning on rejetting it, and running different metering rods and step-up springs. I really don't want to dip into the secondaries unless I put my foot through the firewall. This is for my daily driver, so I'm hoping to get around the same gas mileage or better. I was getting around 13 MPG, which is a combo of highway and around town. Thanks. John


'68 C-10 - 250 with Edelbrock 600cfm 4 barrel, Offy intake, Hedman headers and true duals, HEI, MSD 6A box, relocated gas tank
Soon to have: T-5 tranny