I think my belts are slipping at high RPMs. I have been trying to figure out what and where this smell of burning rubber is coming from (no it’s not my tires) and it only happens at WOT. I have noticed when I go WOT getting onto the highway I will hear a strange squeak when the car shifts at around 80-90 before I let off and cost to the speed limit. Is this squeak and burring smell my belts slipping? If so what can I do about it? I checked them and they seem fine.