Then back each screw out three turns. This will be a "ballpark" adjustment for most engines using the Rochester Quadrajet carburetor. Install new check-ball in its well and reinstall cover screw ...

Before you install the Hi-Po manual ... s a typical off-the-shelf Autolite 4100 carburetor with automatic choke. Removal is easy using a common screwdriver and needle nose pliers.

But as with any component, proper installation and maintenance are key to optimal performance. To help with that, we spent an afternoon with carburetor ... to use the proper tools.