Surging all the time
OK, here's the deal. My Malibu is surging all the time. At idle with it in park, with it in gear and with the brake on at a stop light, and even when accelerating from a stop and at steady throttle. When I say "surging" I mean it feels like it's getting a little extra gas and wants to accelerate. I can feel it lurch forward slightly, and it's more pronounced when accelerating.
Here's the specs:
350 Goodwrench engine
Eddy Performer Intake
600 Holley vac sec w/ 71's in the front. It's a single feed carb.
.443 lift/214@50 cam
Headers & Pypes duals
New Distrib, coil, cap, plug wires
Timing set at 12 initial.
I just lowered the front float slightly, and installed a fuel pressure regulator and gauge. Fuel pressure is at 8psi at idle.
What might the problem be? Blown power valve? Needle and Seat issue? The carb is only about 1 year old and has maybe 1000 miles onit. I thought about swapping out the carb with the 750 vac sec on my Camaro just to see if that makes any difference.
Any help would be appreciated.
71 Camaro - Back to a Rolling Chassis. Going to the Darkside.