Mach1 Driver

Figured I'd wrap this up -- the PA Performance guys have great support, doing through various voltage measurements at various spots to debug it down to a faulty internal voltage regulator in the alternator.  This is an easily serviceable part (small part that screws into back of alternator) and the new one has solved all my issues.  Thanks Mach1Driver for the feedback as well, you were spot-on in your analysis :)  
I saw it at 13.8V on the battery after I started up the engine and ~14.4V after a little test drive. 

In!

I'm not sure that it will be a problem for his gauges.  Converting to the 69 lamp circuit means replacing one of the pins on the dash cluster connector, but that then will really screw up the circuit card.  That RUN-only line handles all of the indicator lamps, so there's some serious problems there.  I could easily handle it with the hard-wired dash cluster harness, but that's expensive.
By the way, Ford went back to the more standard configuration in the 1973 Mustang. suggesting that there were some issues found earlier.

Excellent, you'll fit right in with the rest of us.

Excellent, you'll fit right in with the rest of us.

Excellent, you'll fit right in with the rest of us.

I use a needle to find the holes, that way the tiny hole won't show up on the headliner if you mis the hole locations.

Well...the noise has gone away for the most part. Guess it needed to break in a bit. So happy :)

yes but instructions are on paper. The site has a video that helped with all but the set knob removal. 

Dang that looks good!!

Bob, I used the measurements I found off this site, made a few pencil marks, and ran a string line. I then came back with painters tape to match the string line. The lip of the tape is just enough to catch the stripe once backing is removed. It only takes just a little soap in the bottle to make the stripes workable. 

because half the electorate is ignorant

Theres a sign on the side of my house that says: This house protected by the good Lord and a gun, break in you'll meet them both.
 

because half the electorate is ignorant

and tin foil underwear
I made my own, but they make too much noise walking thru Walmart

I would just replace the u joints with two new ones & call it a day.

I put a Dynacorn spoiler on my 69 convert and have 6.5 in. of clearance at the center/low point.  This is stock springs 302.
 The valance of the 69 and 70 are listed as different parts so the spoiler may not bolt right-up from one to the other.  

I bought this one on RockAuto.com: https://www.rockauto.com/en/moreinfo.php?pk=1140173&cc=1132399&jsn=12
Mainly because it said "Professional" & it was SHINY - just being honest....

Ha!  I'm now 2 for 34,654 correct!  Getting better all the time!

OK...turn signal and radio are on the same fuse circuit, as is the backup lamps.  Probably what's happening is a loss of voltage across those fuse clips,  Look at the top left-most fuse.
On the other hand, your car could be haunted by the ghost of Lee Iacocca.  I'd say three Hail Mr. Fords and spray any anti-Chebby disinfectant you can find. 

Yeah, but we all expect you to throw a zinger in there just to make us grin. You're way below on the zinger quotient.

Yes it does.  It points to the headlight to fusebox area as the problem.

Tested the pressure with a test kit... everything looks good. I think it's just a bad sender for the guage. My idling pressure was 27 psi and with throttle it rose to 46 psi.

Here's mine built Feb 24th and is now enjoying Western Australia.

Not much effort needed while parking, can steer with one hand and I am not a body builder.