Hesitating Holley

[John Brown]

Marlin, just one more thing. If your accelerator pump spring (the one that has a bolt thru it that pushes on the acc. pump lever) is a late style Holley red spring with the bolt head on the pump arm and a chrome looking ny-lock nut on the top instead of the 1970 style spring and bolt set-up, then the spring is usually too soft, and you won't get an immediate pump shot. On most every Holley I do, I use the early style spring and bolt and tighten up the thru bolt a bit to make it firmer, then re-bend (in a slight curve) the arm that runs on the accelerator pump cam to get rid of slop in the linkage. [img]/ubbthreads/images/graemlins/burnout.gif[/img]