Pro-Blend Racing Engine Concentrate - 16 oz. Can 913012 Exhaust ports and bolt pattern

Exhaust ports and bolt pattern are raised

Port exit dimensions:

Holley HP Series Fuel Pumps

FULL SHOW CHROME FINISH TO MATCH BBK 1556

They're wrapped in top grain leather and feature black enameled accents and a Nero emblem

Pro-Blend Racing Engine Concentrate - 16 oz. Can 913012 Exhaust ports and bolt patternOil additive Cools engine oil up to 52? at the crankshaft. 16oz. Known for their tire treatment formula, Pro Blend produces chemicals designed to hold up to the intense demands of the track. In addition to tire treatments for a wide range of tracks, Pro Blend also offers a variety of additives and lubricants designed to reduce friction and wear and improve performance. Product Description: Motor Oil Additive Pro Blend Race Engine Concentrate 16 oz