This little jewel replaces the vacuum advance on an HEI distributor. This allows you to change the timing without having to loosen the distributor - just turn the knob.
Fits V8 engine HEI distributor only.
Perfect product
Summary: Easily allows timing adjustments without physically moving distributor.
Good for phasing HEI distributor.
Summary: I had to drill out mounting hole for screws to fit. The adjustment stud wouldn't clear distributor standoff had to grind it off. Other than this adjuster works great to phase HEI for Holley EFI. Used a clear dist. Cap & timing light to phase rotor.
Yes, I recommend this product.
Clever solution.
Summary: Easy way to get adjustable vacuum lock-out
Yes, I recommend this product.
yes i would
Summary: racing
Yes, I recommend this product.
looks good haven't installed yet , future project !
Summary: Looks like an easy install , looked it over and appears it should work as described
Yes, I recommend this product.
