Stumbling Problem - Help

[dznucks]

I need some professional opinions.

After letting my truck sit over the weekend, it seems it has developing a bad stumble in the engine. yesterday it seemed to only stumble during driving conditions. Last night i went through the electircal side, wires appear ok, cap and rotor are ok. didn't pull the plugs but they are all tight. The carb seems to still be tuned correctly floats are normal and the idle settings are good.
Last i drove the truck was last friday and everything seemed alright.

This morning it appears to be stumbling alittle worse and even stumbling at idle. I am going to change out my fuel filters today but i am not sure thats the problem. I suspected the problem to be electrical at first but now i am leaning more towards a fuel delivery problem.

Can ya'll give me some opinions as far as what to check and maybe share some of your personal experiences with the same type of issues.

oh, its a '69 with a basic 350 and a demon 625, nothing fancy.