I agree with everyone else, and can give you an example of how much he cares for his customers...
When he first started out, I ordered the plugs for the intake runners from him, for doing the 'de-smog'. His original design was flawed, in that the small plastic pieces he plugged in to the Vitron hose, could, and did, blow out on occasion, when the engine was running. I emailed him, and he sent me a whole new set, of the new design, at no charge, and appologized for my trouble.
Another time, I ordered his 'quick disconnect', for the gas tank, along with a few other parts for my buddy Daryl. Paid with PayPal, and waited for my order to get here. When I got my parts, there was a couple of dollars and some change included, with a note explaining that shipping was less than posted, and that was the refunded cost.
Honest, and understanding... Great guy to deal with

Black Dog