Unilite is a good unit and comparable in quality to any Ign out there , its only short coming is that its sensitive to Voltage ( explained in the instructions , but many times ignored ) you need to be sure voltage ( after up and running for 15-30 min) does not exceed 10-10.5 volts , other than that its fine , I have been Recurving/Rebuilding Distributers since 1975 seen lots of systems come and go and can tell you the good or bad in all. The Ford Duraspark I, or II is by far the Best Bang for the money , a properly prepared Dist ( IE Recurved Correctly ) along with a stock or Aftermarket Box and a Good Ign Coil is all any For 6 would need or can use , you can spend more . and some look cool ( relitive term ) but thats all. Ive always made suggestions to my customers, but in the end its what they want not always what they need. and what THEY want to spend .