3.3L '84 Holden Commodore VK

Dear Nick,
I have the unit installed horizontally so that the logo can be read on it. I did several good runs and my fuel economy showed an improvement of approx. 33%. (This is a straight 6, 3.3L '84 Holden Commodore VK which is the same as the GM Vauxhall in the UK)..I will be testing some more and hopefully generate some orders for you. I was a little disturbed that your competitor at hydroboost is spreading his reports about your product as giving no improvement. I have tested his and other products and have gotten very little - at most - 10% gain. His product is a lot of fuss for nothing. 
In touch again soon,