I have been experimenting with the smallest Holley 4 barrel, a 395 cfm model 8007 on my 302 GMC inline 6. It bogs when I take off normally. Once the high speed circuit kicks in it runs fine.
Holley says to play with the accelerator pump cam and nozzle sizes. I have but it still bogs.
I also thought the vacuum controlled secondary barrels might be opening too early. I wired them closed and it still bogs.
Any ideas?
