is a 600cfm edel to big for a stock 350 for off roading. someone told me that a 500cfm would be better. my carb starts to run real rich when sitting up hills. im thinking maybe a 500 would be better. please help me
The 600 cfm should be about right even on a stock 350, the condition you describe, rich on a steep hill is due to the fuel bowl filling up and spilling over into the airhorn or even getting raw, unatomized gas into the carb passageways. Try a spring loaded needle and seat kit, I will try to find you the edelbrock part number if you will tell me the part number on your carb ie. 1405, 1406 etc?
On my 1406 which is the electric choke version of the 1405, the spring loaded needle and seat made a world of difference just like TX_ZUKI said it did for his 400. What is the model number of your carb? If you have a performer series with the spring loaded needle and seat kit it should do well offroad, the others I am not too sure of.