I have been doing a bunch of reading on the 83 turbo dizzy and megasquirt setups and I just want some verification that it's input voltage is 12v and not 5v  reason being is my setup was getting really erratic spark I was wondering if I was feeding the dizzy too much power since there are two different vvalues to use for each voltage 
My set up is as follows 
Ms2 v3 
Extra code 
Stock l28 
83 dizzy and an msd blaster 
Dropping resistors for the stock low impedance iinjectors