I have called Holley 3 or 4 times now, enough to form an opinion about their tech support folks. It's very good. Every time I have called, they have been friendly, helpful, and a pleasure to talk to. And as for their products, the Mid-Mount Accessory System that I bought was, by far, the best solution for my LS3 engine swap. Besides having the best design, it came with remarkably good instructions, and was as easy to install as I could have hoped. The more I deal with Holley, the more I like them.