The Mighty Max has had a tick for the whole time I've had it, which has only been about 6 months. It comes and goes and doesn't seem affected by oil viscosity. I changed the oil last night and it has gotten worse. I'm not saying it was the oil, as it is usually always worse for the first 100 miles after an OC. It's terrible now though, worse than it's ever been. It doesn't stop around 1500 rpm's anymore, it keeps doing it up to 3000 or more and is really embarrassing. Other than adjusting the valves or lifters(old truck, not cost effective), is there ANYTHING else I can do? It's driving me crazy.