MustangForums.com - View Single Post - Ok now with all correct info, looking for opinions

John Doev1 · 05-12-2009, 12:50 PM

I actually have a 670 street avenger(not a 750). Has 64's in the main, 69's in the secondaries, 6.5 powervalve, 30cc accelerator pump. The carb is not opening the secondaries and I am getting a bad stumble under partial throttle. I checked the diaphram and spring for the secondaries and it all looks fine but I have to manually open them to get fuel in my rear barrels(I know it needs a engine load for it to happen but I drove the car, parked it, and the rear barrels are bone dry).

Under partial throttle I am getting fuel spitting out of the main jets.

05-12-2009, 12:50 PM	#1
John Doev1 1st Gear Member Join Date: Mar 2009 Vehicle: 90 LX Notch 5.0 Location: South Eastern U.S. Posts: 87	Ok now with all correct info, looking for opinions I actually have a 670 street avenger(not a 750). Has 64's in the main, 69's in the secondaries, 6.5 powervalve, 30cc accelerator pump. The carb is not opening the secondaries and I am getting a bad stumble under partial throttle. I checked the diaphram and spring for the secondaries and it all looks fine but I have to manually open them to get fuel in my rear barrels(I know it needs a engine load for it to happen but I drove the car, parked it, and the rear barrels are bone dry). Under partial throttle I am getting fuel spitting out of the main jets. __________________ 88 LX Notch, 302 Edlebrock Performer RPM, Holley 750, Hooker long tubes, 3 inch O/R X pipe w/flowtech 3 inch in/out 2 chambers, TFS 1 cam, ported E7's, Detroit locker, 3.73's.