ACCEL's Adjustable Vacuum Advance boosts power and delivers instant throttle response for HEI distributors. It provides maximum spark with no harmful pinging or detonation, and both the rate and the amount of advance are infinitely adjustable. It's almost effortless to install, is backed by a limited one-year warranty, and comes with detailed, easy-to-follow instructions and the Allen wrench you need to make adjustments.
ACCEL's Adjustable Vacuum Advance boosts power and delivers instant throttle response for HEI distributors. It provides maximum spark with no harmful pinging or detonation, and both the rate and the amount of advance are inf...
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