Its a 71 cutlass with a 350 and q-jet. Everything works great: Partial, half, 3/4 throttle from a stop or when rolling. Only when I go full thottle from a dead stop the car bogs badly (doesnt happen at speed). If i let off the throttle a little and then get back on it it does fine. Could it be running lean and need new jets?

 

Check the accelerator pump in the Qjet.