I found some gear drives on ebay for a reasonable price but I want to get one that is for one going to work on my engine, and is going to hold up. I found one by c.a.t. power and I was wondering if anyone had heard of or tried this brand. I am putting it on a 350 bored .060 with a 280 cam. the motor I am told is the older style. This is my first build. how do I know if the bolt pattern on the cam is the same as the gear drive before I order it. any information is appreciated. thanks.