Well to be more technical, I have adjusted the HSN to lean it out w/o overheating with good throttle response, any lower and it boggs or stalls out when i accelerate. Same thing for the low speed needle. And the idle screw it adjusted to allow the car to idle and closed throttle. I have tried loosening and tightening the slipper clutch hopeing that it would help but didn't, so i put it back to the factory setting. And the brakes are not engaged at idle

If i drop the trim on the reciever any lower it will stall as well.

any more suggestions?