I had never used Ray-A-Motive before, but after my 1988 Toyota truck failed it's first smog check ever, they were the closest smog check repair station to my home. During the check, they found that my truck had been vandalized. BB's in the gas lines and razor cuts to vacuum hoses. Due to health issues my truck had been sitting out in the desert for 5 months as well. The carbureator had to be rebuilt, and the catalytic converter had failed, so it too needed replacement. To make a longer story shorter, when I got the truck back, it was running like brand new. Well done Ray-A-Motive and thank you. I will recommend you over and over!!