Originally Posted By Aar1064
Originally Posted By Cab_Burge
It sounds like you have the vacuum advance hook into manifold vacuum port instead of above the throttle plates for ported vacuum like they came stock scope
Which carb numbers are you using, OEM Holley or after market carbs like the BG six shooters or ?


OEM original Holley carbs restored by Scott. It's plugged into the ported one on center carb.

If my memory is serving me correct, it's been over 30 yrs since I worked on a stock set of OEM Holley 340 six pack carbs blush, the vacuum advance hose should be on the nipple on the passenger side of metering block, not on any other one scope
I've work on a bunch of 440 six packs since then but not in the last 5 yrs whiney whistling grin
Six packs rock when set up correctly, no matter what the doubters say runaway grin

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)