[Malibu79]

I am having a prob with my motor, when i give it like 1/4 to 1/2 throttle it make a noise that sounds like it is coming from the intake almost like a ticking. if i give it a tiny bit of gas no noise and when i give it 3/4 + it makes no noise. It had done it before but i put in a bunch of lucas fuel treatment and put super in it. and it went away in like 20 min. i continued to put super in it but i went down to 89 for a couple of weeks no probs and it just randomly started again and it sounds like **** cuz it is kind of loud. I just don't know what it can b