65 C10 Family Project - Idling Problems!

[69MPG]

Well we finally got the motor fired up! Now we are having trouble keeping her idling. we have a eldebrock 650 and it sounds like it's staving for gas every 4 to 5 seconds, to a point were it almost dies and then kicks back in. if its running a 2k (rpm) it will drop about 800 before it kicks back in???

I also put a timing light on her, and it starts way advanced then it starts to to drop down to the timing mark, thats when it almost dies, then it jump back to being advanced to much again, and slowly start to come back down to the mark again, and this is the cycle it goes throu



We have an HEI Distributor.

It's been a long time since I had to get a new motor runing, any help, thanks