[fsiewert]

Hey Brent;
It sounds like you have a lean run condition when the throttle first opens. Check how far the throttle opens before the accelerator pump starts to squirt. There are some adjustments you can make if the squirters don't squirt until the throttle opens substantially. Lengthen the spring loaded bolt that contacts the accelerator pump arm so the accelerator pump squirters squirt sooner. You can also change the setting on the accelerator pump cam to change when and how they squirt. By making them squirt sooner, your lean run condition is eliminated.

Also check to make sure that your timing is changing as the RPM changes. It should retard a bit when the throttle is first opened then return to full advance as cruising RPM is achieved. I don't know what kind of distributor you have but there should be some method that advances and retards the actual spark timing as the RPM changes.

Hope this helps,
Fred