i just put a crate 350/330hp motor in my 70 chevelle. it's got an hei ignition, gm intake, and 600 cfm edelbrock with electric choke. the timing was set at 10 btc with the vacuum advance plugged up. plugs gapped at .045. the problem is that when i try to start it will run decent but as soon as the choke opens up it dies. i've tried adjusting the idle mixture screws but this didn't seem to help. also, if i put any kind of load on the engine(put it in drive) it bogs down and dies. i've checked for vacuum leaks around the carb and intake using starting fluid but didn't find any. any suggestions? is it a carburation problem? thanks.
Rich
Rich