[Eljaro]

If what you have is a bog or stutter, you may want to check your accelarator pump setting on your Holley. Check the play for lever to the actual pump, check the cam, it has two or three positions for more or less inmediateness and also see what injectors you have ( on mine , a 850cfm they are #31).
Also check your main jets. If they are too small (white plugs indicate a lean setting) you will have accelleration problems too.
I had a similar problem, which cured itself when I replaced the #76 jets my mechanic had thrown in there for I do not know which reason for a set of #85 jets.
Stefan