BLP Profiled Downleg Stepped Booster BX4

Description

BLP 4150 down leg boosters are machined from a high hump heavy-duty blank. The booster leg is sized with a special ball-nosed reamer to ensure better fuel delivery. The modified boosters have a specially machined radius in the center and the outside is machined for uniformity and better airflow. This machining is not allowed in some classes and is not performed on the “legal boosters”. Designed for use on BLP Billet series main sections.

STEPPED: Recommended for 830 or larger carburetors.

The last 3 digits after the part number indicate the booster leg size, i.e. 5100S-435-140

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