APPLICATION: THIS IS A FORD 300/SLANT 6 COMPRESSED NATURAL GAS CONVERSION KITTHIS KIT WILL WORK WITH VEHICLES WITH OR WITH-OUT A HEATERTHE KIT IS DESIGNED TO MOUNT TO AN INTAKE THAT IS SETUP FOR A SINGLE BARREL CARBURETORBOLT PATTERN IS 2-11/16" CENTER TO CENTER UP TO 3" CENTER TO CENTER (SLOTTED)PLEASE CHECK YOUR BOLT PATTERN BEFORE PURCHASE, MANY OTHER PATTERNS AVAILABLE! INCLUDES: IMPCO ORIGINAL REGULATORS AND 125 MIXER, AIR CLEANER ALONG WITH EVERYTHING YOU NEED EXCEPT FOR HIGH PRESSURE LINE AND TANKKIT DOES NOT COME WITH HIGH PRESSURE LINE OR TANKWE CAN SUPPLY THESE COMPONENTS, JUST LET US KNOW WHAT YOU NEED! NOTE: GENERAL INSTRUCTIONS INCLUDEDMAY COME WITH DIFFERENT REGULATOR BRACKETWE ALSO SUPPLY ADAPTERS AND THROTTLE PLATES FEEL FREE TO EMAIL US WITH QUESTIONS! FREE SHIPPING IN THE 48 STATES Be sure to add me to your favorites list! Check out my other items!Sign up for PayPal; the fast, easy, and secure way to pay online. Feel free to ask us about conversion kits for almost anything including trucks, cars, generators, tractors, boats, motorcycles, RVs etc. We can build a kit to convert almost any engine!