![]() ![]() I know our engines are solid as far as internal cam timing, the chain and distributor gear, and I know what the distributor is going to do based on the setup I build it with, so I pretty much know what to expect anyway. Below that usually the timing flutter isn't too horrible, you can still hone in on the timing once you learn to read between the flutter, you'll get to know what's accurate and what isn't as far as base and curve. What I do is run the engine above 3000 where the multispark is inop and set my total. I have an old Craftsman chrome mechanical dial back timing light, (father has one too) identical to your Sunpro dial back, and neither one of ours likes the MSD boxes at all. If you're not running a box, you'll be fine. I've heard of people having good luck with the Innova timing light that you're looking at. Even when I add the box to a points ignition system it goes from being perfectly fine as a standard points setup but as soon as I switch the coil wires around and fire up the box it goes to a very bouncy timing mark that is difficult to time. I get the issue with any car here that I run the box on. Electronic Specialties EL125 Timing Light with Digital Tach. It's not the MSD ready to run distributors or any of that stuff. Automotive Timing Light 12V, Inductive Ignition Timing Light,Timing Gun For Car Motorcycle Marine. It's actually caused by the MSD CDC boxes. ![]() If you've ever experienced it, it's the timing mark bouncing around. So is the problem inaccurate timing ,timing mark bounce,or something else? My old chrome sunpro with mechanical dial seems very steady. 035 end play when I took it out the other day. I measured my DUI ,which only had about 1000-1500 miles on it and it has. I measured it when I got it back and has exactly. I sent it back and they said they replaced the shaft. I did have to send the MSD dist back though cause out of the box there was zero shaft end play and it wouldnt spin freely with my fingers. This new MSD dist has a very stable timing mark at any RPM. Need recommendations on a couple of timing lights to consider. Id rev up the motor with the DUI and the mark would move around some especially the higher the rev. I have been out of the hot rod game for awhile. Using my old gun on both dist I will say the MSD has the most stable timing mark in awhile. 1-handed operation with slim, rotating barrel. Split-screen digital LCD readout displays Tachometer and Advance functions simultaneously. I took out a DUI "tripower" small bodied HEI dist that I was having problems with(another thread) and replaced it with a MSD ready to run billet dist. Their wide coverage, proven quality and competitive price make them the tool of choice for use on the vehicles of today and tomorrow. ![]() I guess Ill just try it when I get it and see how it works. So thats why I asked here to see what your experiences were. Well while I was reading some q&a last night about whether this light would work with mSD ,I did see where there were a few that said it didnt work for them where the majority said it did. ![]()
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