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Actually you have a probe that can be set to 1X or 10X. You have it set for 10X which is what your scope is set for. Voltage numbers will be wrong if the scope is set for something other than the probe you are using.

I have a love hate relationship with picoscope. My favorite is my old Tektronix THS730A. That was before Tektronix got bought and went under the same ownership as Fluke. Tektronix then gave the hand held scope market to Fluke and just focused on the high end scope market. I don't much care...

After watching another video, I am going to buy this secondary probe. I already have a planned use for it. https://www.aeswave.com/15-inch-WyzeProbe-for-Secondary-Ignition-and-COP-p8764.html

Laysons also shows them but does not say if in stock or not.

Would like to buy a repo 69 GTX trunk panel. AMD lists them but they seem to be OER. Is that correct? Does anyone else make them? What is the quality? Other problem looks like the OER are not available. Jegs shows 12/31/25 delivery and most others show out of stock. Summit just says not...

Ok. makes sense now. Brain cramp. I forgot that the negative side gets grounded. So the spike is when the ground opens the the second pulse is the spark duration. Didn't listen to the whole thing, but this is the best video on the subject I found. You are measuring the primary voltage.

Yes - 10x probe so your scope is set properly. For this measurement, its a good choice. I don't believe that you are reading negative. I think your trace is not set at the middle of the the screen which would be zero. What you have is fine. I believe all of your reading is positive...

So what you see is decent info. But what do you want to see? The discharge pulse peak voltage? If so, you should be using the trigger function. Start high and then bring it down slowly till it triggers. That way you don't miss the peaks.

Do you have a 10x probe?

Yup. Turbo Action. The only NSS they offer is the stock type. If I did it again I have improvements in mind - would extend the cam more towards the front of the shifter.

The neutral safety switch in the race car has always been flaky since I put this transmission in about 25 years ago. More often than not it would not turn over in park. Had someone adjust the shifter linkage and it was better, but still a problem. Fast forward to my last outing in October...

Not the driveshaft because the driveshaft is spinning at running speed but engine and some parts in the transmission are spinning at a slower speed when in neutral and you let off the gas. If it was the driveshaft or wheels then the vibration would not go away when you put it in neutral.

Could be out of balance. Did you check to make sure a weight did not fall off? When you put it in neutral at speed, does the vibration it go away?

This is how - from 70 Plymouth FSM. If you don't have service manual, download from free at mymopar.com.

Ii would be surprised if a longer shaft fixes your problem. How badly worn is the bushing? Is the vibration at all speeds?

For sale - New made in the USA Steele front and rear window rubber for 66/67 B Body Sedans. Will not fit a hardtop. Part numbers 70-1778-50 and 40-0482-81. $250 plus actual shipping. Please PM on the board. Located in Cincinnati.

I would fix your title to make it more specific. I'm sure Bill with the black 66 or 67 Satellite would be happy to share pics how an original hemi sat in those cars.

RIP Brian. Seen the Beach Boys countless times. Maybe 15 to 20 times. I can think of two definite times that Brian was performing. The first was in Hartford in the 70's before the coliseum collapsed. It was a time period that I believe he really was not touring with the band, but for...

I bought some once but was never able to bring myself to using them. Always eventually got them to seal the old fashioned way.

They are not hard to install, but sometimes the flares are tricky to keep from leaking especially if you have to flare them yourself. You do need to evacuate the system well. I shoot for 50 microns which I achieve regularly on soldered joints but struggle to get to on flared mini-split joints...