I have smc kit with seperate pump cause the 1 in the bottle was trash. when i push the button inside to see if alky working, the idle goes down like it's suppossed to, BUT when i actually floor it, it backfires a bit and it NEVER seems to use any of the alky. I've tried a lot of different levels as far as WHEN IT COMES ON, and amount sprayed. Anyone got any suggestions?