FBO Ignition
J-685S Limiter Plate with 4 piece Spring kit
6 Mechanical/Idle Advance Timing Choices
Fits ALL V-8 Mopar Factory Style Magnetic Pick-Up or Points Distributors
Thousands in service worldwide for over 30 years
This kit enables you to limit your mechanical timing to achieve more initial timing without detonation.
Tune any Mopar Distributor into a Track Ripping Performance Distributor
No More Welding and filing the slots, drops right in! Perfect every time.
Installing
these precision components and dialing the distributor to the most
efficient timing events will still NOT bring your engine to the perfect
tune-up. If your trying to run any of the standard ECU boxes especially
the Orange Box your timing will still retard by 6-10* under moderate RPM
and load. So no matter what you do to the distributor your ignition
system it will still steal HP and efficiency.
Consider our HRR688 computer controlled Mopar ECU for exact and perfect timing to 7000 RPM with a built in REV Limiter
Need Help choosing the correct slot? Call our tech department Mon-Thursday 8am to 3 PM and we'll help you out.
See More Distributor Tuning Parts on eBay search FBO Ignition
It's your choice select 0-10-12-14-16 or 18* of Mechanical timing
Corresponding idle timing set at 34-24-22-20-18-16 (all total at 34*)
Full instructions on-line to disassemble and install
#J685SK Full Kit with Plate, Tuning Guide and Spring Kit