The famous Holley HP main body found in every pre-2012 NASCAR Cup winner is now available in a retrofit kit to update your Holley Double Pumper. Holley has taken the science of fuel technology and introduced a retrofit package that converts your tired 0-4777 (650cfm), 0-4778 (700cfm) or 0-4779 (750cfm) (shiny or dichromate) into a race ready, high flow 750 CFM HP style carburetor with simple hand tools.
Detailed instruction sheets with photos and all parts necessary for the conversion are included for simple installations, even by novice enthusiasts. A few minutes are all it takes to eliminate that restrictive choke tower and linkage and give your engine the airflow and horsepower it has been looking for.
Don't settle for a cheap overseas knock-off, demand what the racers demand. Demand Genuine Holley!
Features and Benefits: