I use a Snap On digital with dial back, do the job without any trouble, works for me on a MSD 7AL2.


'70 Cuda with a 572 Keith Black / B1 heads with a sheetmetal intake (2 dominators) Lencodrive 3 speed trans. 2350 lbs with me Run 8.04" / 168 mph 1.11" 60 ft Fastest Mopar at the Euro Mopar Nats website : http://vantastic-racing.com/