{"product_id":"17558-vfactor-tuneable-mechanical-advance-kit-for-big-twin-sportster","title":"Ignition Part Mech Adv Spring Gold For #17548 Power House Unit For Full Advance @2600Rpm","description":"\u003ch1\u003eV-FACTOR TUNEABLE MECHANICAL ADVANCE KIT FOR HARLEY DAVIDSON BIG TWIN \u0026amp; SPORTSTER\u003c\/h1\u003eWEIGHT: 0.02\u003cbr\u003eDESIGNED TO OUTPERFORM AND OUTLAST ANYTHING OUT THERE , THIS TUNEABLE MECHANICAL ADVANCE UNIT IS THE FINEST AVAILABLE. IT FEATURES A HEAT TREATED STAINLESS STEEL BASE , PRE-LUBRICATED HEAT TREATED WEIGHTS AND THREE SETS OF COLOR CODED SPRINGS THAT ALLOW YOU TO SELECT THREE DIFFERENT ADVANCE CURVES TO MEET YOUR ENGINE'S REQUIREMENTS.\u003cbr\u003e\u003cbr\u003eTUNEABLE FEATURES:\u003cbr\u003eBLACK SPRING - ALLOWS FULL ADVANCE @ 1400 RPM (SAME AS OEM)\u003cbr\u003eSILVER SPRING - ALLOWS FULL ADVANCE @ 2000 RPM\u003cbr\u003eGOLD SPRING - ALLOWS FULL ADVANCE @ 2600 RPM\u003cbr\u003e\u003cbr\u003eADVANTAGES: ELIMINATING SPARK KNOCK AND DETONATION MEANS LONGER ENGINE LIFE AND MORE LOW END HORSEPOWER AND TORQUE.\u003cbr\u003e\u003cbr\u003eTHE ONLY MECHANICAL ADVANCE UNIT KIT THAT ALLOWS YOU TO ADJUST YOUR ADVANCE CURVE. A MUST IF YOU HAVE PERFORMANCE WORK DONE. EVEN MINOR PERFORMANCE CHANGES CAN REQUIRE A DIFFERENT ADVANCE CURVE.\u003cbr\u003e\u003cb\u003eV-FACTOR\u003c\/b\u003e\u003cbr\u003eGOLD SPRING ALLOWS FULL ADVANCE @ 2600 RPM\u003cbr\u003eFITS BIG TWIN 1970\/1979 \u0026amp; SPORTSTER 1971\/1979\u003cbr\u003ePACKAGE OF 10 , (IMPORTED)","brand":"MID-USA","offers":[{"title":"Default Title","offer_id":20199434649711,"sku":"17558","price":11.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/7401\/0479\/products\/0069554_0.jpg?v=1575409846","url":"https:\/\/www.widowmakersboneyard.com\/products\/17558-vfactor-tuneable-mechanical-advance-kit-for-big-twin-sportster","provider":"Widowmaker's Boneyard","version":"1.0","type":"link"}