Methanol/Water injection

Thirty plus years ago there was a system available that did the same basic thing. It consisted of a tank with a pump like a windshield washer uses mounted to it, tubing, various sizes of "jets" to control the amount of fluid injected, & an electronic box that measured vacuum & turned the system on & off. It was made for water but they also said you could add alcohol to the reservoir. I think the company was called Spearco or something like that. They originally had a single stage system then later they had a system that was 2 stage to increase the amount of fluid injected under heavier load. I think the systems were about $30 to $50. I have a couple of them laying around, new in the boxes, but not at all sure where they are at the moment.