Been awhile since I posted but anyways just the other day I put a new Edelbrock 1406 on Rusty, that 305 is running much happier but I have no idea how to properly set the idle mixture screws. I did indeed watch the vid they give you and set it best I could by ear by screwing in the driver side screw in till the rpms dropped then screwing it out about 1 1/4 to 1 1/2 turns then repeated on the second screw.
Also the idle is high even though I have the main idle speed screw all the way out and its not the choke ether, I adjusted the high idle screw already and it isn't whats causing the high idle.
Rusty is running real sweet although the 305 doesn't have as much gumption as it did with the 1411 but that was to be expected, hoping someone out there knows how to set the mixture right and possibly help with this idle problem. Any help would be greatly appreciated!