I adjusted both screws as per suggestions on previous posting. Neither one made a bit of difference. I have high, low, intermediate range of engine speed, an d can plow with it. It just dosent idle low.

Most likely the idle screw in the carb, if you followed these and it didnt work im not sure... every one that I have ever worked with at the shop idled nicely after a carb adjustment. Unless its a fuel problem then it would putter out so i do not believe it is this.
--taylor
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Did you turn the one on the top half of the carb, thats the idle speed.The other 2 shouldnt effect the idle speed. Could also have a bent or wore out linkage.

If the throttle plate in the carb is misaligned with the throttle bore, it will hang part way open. This is simple to fix. Loosen the screws in the throttle shaft holding the plate, loosen the idle screw so it will not touch the lever, (may be there now) and center the plate well so it seats in the bore, and retighten. Jim

I turned both the one at the top left under the govenor tube, and the one down at an angle on the bottom right.

Has the carb been off recently? If so, is the governor control seated properly in the carb? It is easy to miss the slot on the carb when putting it back on the governor rod. (My $0.02 worth. jal-SD)

You mentioned "both" screws. There"s three. The idle speed screw is the small one at the top of the carb, facing outboard. I"m gonna post my procedure again, may help. Adjust all three screws.
Make sure the float isn’t sticking or touching the insides of the float chamber. Some previous advice was to use a Dremel tool and smooth the insides of the float chamber so it doesn’t rub or touch. Pretty important. Set the float so the top of it rests 1 27/32" above the flat surface of the float chamber.
Initial settings are as follows to get it started;
Main fuel adjusting screw, big screw facing down at an angle, towards the rear, at the bottom of the carb; 2 1/2 to 3 turns open. This main screw turns clock-wise for leaner mixture. [This screw adjusts fuel.]
Idle air-mixture screw, smaller screw facing forwards, on upper left-hand side of carb; 1 to 1 1/2 turns open. This idle screw turns counter-clockwise for leaner. [This screw adjusts air.]
Idle speed screw, faces outboard, at the top of the carb; set for 450 rpm, and make sure the governor correctly engages the slot. [This screw adjusts RPM’s.]
Final settings are determined as follows;
Get the engine warmed up, and idling.
Turn OUT the idle air-mixture screw until rough running, then turn in until it idles smooth. (Mine is set at 1 turn open.)
Rev it up, wide open, warmed up, then turn the main fuel adjusting screw IN until rough, then out til smooth, then 1/4 turn to 1/2 turn further out. (Mine sits at 1 turn open. Other advice has been to set it at 2 1/2 turns open for pulling implements.)
Should rev up smoothly and evenly.
Too Lean = stumble, sputter, damaged melted plugs.
Correct = tan plugs.
Too Rich = back smoke, black sooty plugs.

Yes I put a new kit in it. IF it is not matched up, would I have a full range of rpms? Could I pull with it, which I can?

Sorry. Forgot to mention there is NO screw facing the outside. Just the one under the govenor tube, and the one on the lower bottom opposite side. I have it set as per your instructions, but found that ith the one under the tube, if I ran it all the way inside it idled a bit lower. Don't know about its pulling power yet tho,