Looking at the Mallory, specs look good.
Brand Mallory Ignition
Manufacturer's Part Number 6853M
Part Type Ignition Boxes
Product Line Mallory HyFire VI-AL Digital CD Ignitions
Summit Racing Part Number MAA-6853M
Ignition Box Output Capacitive discharge
Rev Limiter Yes
Timing Retard None
Data Acquisition No
CD Voltage Output to Coil 520 V
Current Draw 0.6 amps per 1,000 rpm
Spark Output (millijoules) 135 Millijoules
Minimum Operating Voltage 8 V
Maximum Operating Voltage 16 V
Length (in) 8.000 in.
Height (in) 2.750 in.
Width (in) 3.500 in.
Ignition Box Color Red
Coil Included No
Quantity Sold individually.
Notes If this ignition is used for racing the warranty is 90 days.
Digital performance at analog prices! That's what you get from the HyFire VI-AL ignitions from Mallory. Mallory has taken their VI-A ignition box and added an easy-to-adjust digital rev limiter that adjusts between 4,500-12,000 rpm, and doesn't require chips. They use the newest microprocessor-controlled circuitry to deliver more power and quicker acceleration with less current draw. These highly efficient ignitions deliver multiple sparks per combustion event, so you get consistent, reliable performance throughout the rpm range. The durable, lightweight, extruded aluminum housing ensures maximum heat transfer. They are easy to install and work with points, OEM, or aftermarket electronic ignitions, or magnetic crank triggers.