i cant get a good tune for my HPI savage 25 in the winter when it was warmer the tune was still fine but now when i run it rich it doesn't make any weird noises but it doesn't go fast and when i lean it just by a little it starts making a pinging noise does anyone know a good tune for winter? BTW the tune i am using it the factory tune where the low speed and high speed are flush with the carburetor. its a decent tune but i want better acceleration please let me know if you have found a good tune that you!