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BLACK OXIDE
OEM replacement reference 12051
The Air Ride for you hands
VANCE + HINES VALVE INTAKE BUSA 1MM TT
Slim yet robust tool
Breaker weight spring set. Heavy Duty - 70-99 B.T.(excl. TC); 71-03 XL (NU). With mechanical advanced ignition 570850 BLACK OXIDEStronger than stock. For slower advance curve, used to help solve detonation issues. Also less breaker weight rattle during idling and improves idling stability. Note that stronger springs may require carburetor adjustment (richer). Note: 516300 is standard replacement, 516301 is heavy duty, 516598 is extreme duty. Mixing different spring strengths will give additional fine tuning options.
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