How do i get my exauhst to not smell so much of gas. I adjust the air and fuel screws and it gets worse. Even blows black smoke till i take them back to where they were. I need my truck to pass emissions, how do i get that to happen. Thank you again.

The gas smell is most likely due to too much gas and to little air in the air-fuel mixture. Is the float level set too high? Are the metering jets the correct size for your engine? Is the engine timed correctly? If the air:gas mixture is not right and the mixture does not burn correctly then the emissions will suffer.

the jets are correct but ill mess with the floats some. I tried adjusting the gas air screws with no satisfaction but i will mess with the floats now. Thank you very much chipper

If the air adjustment screws don't affect the idle then there is a problem somewhere. Are you sure that the low speed jets are properly seated and gas is not bypassing them? Is there an internal gap that allows excess gas to pass. Are the throttle plates centered in the bores?