H.E.I. Adv Curve Kit

The H.E.I. Adv Curve Kit by Mr. Gasket is a precision ignition advance curve optimization module designed specifically for vehicles running High Energy Ignition (H.E.I.) distributors. This compact kit addresses a critical tuning gap, as factory H.E.I. curves often compromise between idle stability and peak power delivery, leaving performance on the table across the RPM band.

This kit primarily optimizes centrifugal advance characteristics, allowing finer control over timing advance as engine speed and load conditions change. The compact design—measuring 3.2 x 1.1 x 6.25 inches and weighing only 0.13 lbs—installs inside your existing H.E.I. distributor housing without requiring external modifications or bracket fabrication. The quality construction ensures consistent performance across temperature and load variations, essential for reliable street and strip duty.

Technicians and enthusiasts benefit most from this upgrade when tuning carbureted or early fuel-injected engines where distributor curve matching is critical. Whether you're running a classic muscle car, street rod, or vintage truck, this advancement curve solution lets you dial in the exact ignition timing progression your engine demands for maximum efficiency and responsiveness.