freshly rebuilt 402 that i had running with a 780 dp but was running very rich and had bad stumble so so put on another 3310 750 vac sec that i had and now it will not stay running, feels like it maybe running out of gas. it will stay running for just 15-20 seconds then dies. i believe its a carb issue but not sure which way to go for troubleshooting, any ideas will help.
also after the car runs for awhile and it dies when i try to start it up it clicks at the starter(the battery is brand new)if i let up and try agin sometimes it will turn over or just click again?? thanks