HI-6S and PS-91 coil along with plug-in harness for 1985-95 Ford TFI-IV applications, including Mustang 5. 0 H. O. Will not work with distributorless ignitions. 50 states legal CARB E. O. , D-225-59. HI-6S Multi-Spark IgnitionNew! Plug-n-Go installation for 4, 6, 8 cylinder with distributor Up to 70% more spark-gap energy than stock ignitions! Max output up to 8, 000 RPM for up to 9. 5: 1 comp. ratio! New! Soft urethane encapsulation seals against moisture, dirt, dust, vibration, heat! Points or module triggered Built-in adjustable rev limiter in 100 RPM increments from 3100-9900 RPM Inductive ignition with long duration spark Low cost boost retard (with optional MAP sensor) or 0-20° selectable nitrous retard. Specifications Operating voltage 6 to 18v, reverse polarity protected, neg. ground Current draw 5. 0 amps max. at 7, 000 RPM RPM operating range 8, 000 RPM (can be extended to 10, 000 RPM on 4 cylinder engines). RPM limiter range 3, 100 to 9, 900 RPM when digital stage rev limiter mode selected. Multiple Spark Duration Approximately 20 degrees crank shaft rotation below 2, 000 RPM. Max 12 sparks per sequence. Primary voltage output 450 volts (inductive discharge) Spark duration 2, 800 microseconds at 2, 000 RPM Trigger input Module trigger (12v square wave). Dimensions 5-1/2"L x 3"W x 1-1/2"H, 2-3/8 lbs.Pit Stop USA offers Crane Cams Hi-6S Ignition & PS-91 Ignition Coil 6000-6301 at low everyday prices. Be sure to check out all of our products from Crane Cams including Crane Cams Ignition Box Systems,Ignition Boxes and Controls.