Okay, I've read a lot here lately regarding timing lights being inaccurate when working with an MSD ignition.

I run an MSD Digital 6 plus ignition, and have a simple Actron inductive timing light. Am I getting an accurate reading?

I haven't had any problems using an old-school inductive timing light on either of my "MSD-6 cars".

The MSD can affect lights.It has multiple sparks at idle.Why do you think its called MSD.Multi spark dischare compared to stock ignition.My old Craftsman and my SnapOn lights work with mine.That and once you get over I believ 3K it fires like a normal ignition.Rocky

I've never had any issues with a timing light, but MSD very specifically states in the instructions to never use a volt/ohm meter or test light on the terminals at the coil.

yes I've also heard that MSD wreaks havoc on dial back readings but I'm not aware that if your running MSD that you then need to buy a special light so I'd say your good w your current non dialback one

The problems begin with the multiple sparks from the MSD. The digital 6, 7 and the DIS can be the worst. Ironically old timing lights seem to work because they just aren't fast enough to see the extra pulses. Some newer dial-back lights can see the extra pulses and get confused. The MSD timing lights are specifically designed to handle this.

But if you get a stable timing reading with the light you have, you're OK as-is. As you pick up in RPM you may start to see some jittering and some dial-backs just flat stop flashing.

If you get a good flash, it's not an accuracy issue. If you decide to buy a new timing light, make sure the specs say it can handle DIS ignition.

Regular only. I guess they assume that a performance engine would use a fully degreed balancer, and errors can occur with the dial-back electronics. It's always better to use a regular timing light and a good fully degreed balancer.