I'm looking to learn to tune my carburetor myself since every place I've called in a 100 mile radius wants to charge 400 dollars or more for it. I know it's not that simple to do, but looking at videos has given me confidence that I can pull it off with some help, advice, and tips from everyone here.
To start, I have a Holley 750- List number is 80508-10 I believe, but I can't find the -10 anywhere that I look online. I don't know the jet sizes in there just yet since I'd have to take the float bowls off to figure it out. I was recently running it down in Augusta, Georgia with decent gas mileage and smooth gear transition (It's an automatic turbo 350 transmission). Gradually, through Kansas, we started noticing issues with the altitude as was expected. I knew I'd have to get it tuned for sure- I just didn't know they charged so much in Colorado for it.
Now that I'm in Colorado, it goes all the way to 4000 RPM before kicking into 2nd gear, and 3rd gear is around 3500 RPM and generally takes place a few seconds after going to 2nd. I know this has to be because of the altitude and thin air. It's running rich and the fuel smell is strong. If this information gives some good ideas on a place to start, I'm glad to provide more details.
What tools will I need? I have basic screw drivers, wrenches and sockets, of course.