I noticed that when the secondaries on the DP650 kick in the car starts breaking up graemlins/sad.gif . Car runs fine otherwise. I'm assuming theres too much fuel?
How do I adjust this carb?
Thanks

You might have an ignition problem, like an HEI wired to a resistor wire supply. Put a timing light on a rear plug and bring the light into the car. Run it and see if the flashing becomes erratic when the engine is breaking up. That would tell you if it is ignition or not.

What kind of carb are you running,your sig says a 650 double pumper but your saying when the secondaries "kick in".

Running a Holley 650 DP. I can feel through the pedal when the secondaries are activated, and thats when she starts breaking up.

Running a Holley 650 DP. I can feel through the pedal when the secondaries are activated, and thats when she starts breaking up.