WebNov 2, 2011 · Off-Idle surging is a common occurrence after installing a carburetor. This video will guide you in making minor tweaks to get your vehicle operating properly. WebAug 7, 2006 · He has a new holley 4160 750 cfm DP carb. The car has a terrible stumble off of idle. You could almost stall the car with it if you held your foot there. I read every post using the search function i could find. The accel pump squiters look and work fine. We have opened the carb up and all passages look fine. The timing has been checked and ...
Need help with a holley 4412 stumble on e85 Team Chevelle
WebJul 12, 2024 · Take the carb off and look. .020"-.030" of throttle T slot exposure is about right. You then tweek the idle rpm speed with the ignition base timing and the air flow thru the PCV valve internal orifice at idle to get more or less idle air flow and idle rpm speed. One or more of these are out of wack. WebNov 10, 2005 · First thing to rule out is the accel pump linkage. Unless the motor has a real low idle, most likely the pump shot will be too small due to the position of the cam at idle. Readjusting the accel pump will help, but if the carb is up on the idle circuit at all, you need to first change the accel pump cam. snickers ice cream cake purchase
Edelbrock Carburetors - Troubleshooting - Off-Idle Surging
WebMay 16, 2008 · reinstall the carburetor and setup your idle system. Before you start the engine, examine the fuel bowl side of the throttle body. Hopefully you'll see a little tube, … WebJun 17, 2014 · off idle under load it stumbles when you press on the gas. Your accelerator pump isn't working. If you don't know what an accelerator pump is, it's a squirt gun for fuel. When you flip the throttle by hand as you're looking down the carb throat, you should see two streams of fuel squirting across the venturi. The purpose of the accelerator pump ... WebFeb 17, 2016 · Im trying to determine if my heat riser is clogged on my 1600 sp engine with 30 PICT-1 an 019 due to an off idle engine stumble that wasnt there in the summer. I took some IR temp readings just now and wanted to compare notes. ... It was reading 44 degrees on the carb flange base (35 degree ambient), and 120 on #2 riser flange. the bare engine ... snickers ice cream cake walmart