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For anyone needing a Vacuum Schematic for engine emission control vacuum systems for Mustangs from 1967 - 1972, Mustang Barn has provided that information online on a no fee basis. A few years ago, with Mustang Barn's knowledge and approval, I assembled all of their individual Vacuum Schematics...

Nicely done. I published a YouTube video covering these Ported Vacuum Switch units, (aka Thermal Vacuum switch units), to include a video showing how to test these vacuum switches to make certain ported vacuum is getting to the Distributor Vacuum Advance Diaphragm with the coolant at normal...

When we purchased our 73 Mach 1 i had been beefed up significantly by the prior owner. Amongst the upgrades was a full MSD system with MSD distributor. The elecronic ignition control module was a 6A unit. I wanted the Rev Limiter version of electronic ignition module. So, I ordered a 6AL...

Agreed.

When we bought our 73 Mach 1 about 6 years ago I resolved the ***** light laden instrument panel with a Dakota VHX analog gauge unit (they are on both of our 73 Mustangs). One of the first things I noticed is how when driving the temp would hang just below 200 degrees F. But if i idled for more...

dang, cool trick. I never needed to do that, and hope I never do. But, you can bet I am going to remember this pointer... Thank you for sharing.

Every once in a while my light bulb does burn pretty brightly. heh heh... I am very happy to be able help fellow enthusiasts, an honored to be in the midst of such knowledgable folks. It makes having these vintage pony cars all the more fun and exciting to own and tinker with.

I have (also) seen (and replaced) coils fail when they warmed up. It is not all that common overall, but happened often enough that I was always on the lookout for that happening.

FWIW, We installed two center consoles, from ACP, in our 73 Mustang Convertible, and our 73 Mach 1. In some of the earlier comments in this thread it has been said there is no difference between the transmission types for the center console fitment. In having worked on a lot of 71-73 (and...

If you have not yet ordered springs I suggest you call Easton Detroit Springs. The rep will ask a lot of questions about your car and how you want to use it. Then they will provide a solid, "take it to the bank," recommendation for springs (fron and rear). Their web site is at...

My first thought is to ask if the filter sock on the fuel sending unit was been changed. If the fuel filter at the carb was gunked up, certainly any such gunk would be clogging the sending unit filter sock, which is simply slipped onto the fuel pickup steel pipe inside the fuel tank. I know...

My mentioning the RPCV was not directed at any comment by you. This is general information I send as a post whenever I see anyone mentioning an interest in converting from drum to disc at the old master cylinder with front brake RPCV still in place, hence allowing a perpetual problem with the...

Any time I see folks wanting to do a drum to disc conversion I roll out a document I have saved so I can copy/paste in some info I feel is pretty important. My niggest concern is to recommend only a high quality supplier of parts, and it looks like you already have several places to check out...

Hmmm.. I never bothered paying attention to the action of the emergency flasher switch, but as I pondered it seemed to me you are likely correct. So, I dove into my handy dandy wiring schematic to see how the switch is designed to work. Well, it does look like it is meant to be pulled out to...

That is a nice looking pony in the process of being restored/rebuilt. Wen I retired 5 years ago I had already purcahsed a 1969 Shelby GT500, a 1973 Mach 1, a 1973 Mustang Convertible, 1 1997 Honda Del Sol SI sports car, and finally a 2020 Shelby GT500 to help keep me busy in retirement. At...

Aces, I hope you are pleased with yourself. My mind is performing at warp drive speed as I ponder moving to an EEC-V system on our 1973 Mach 1 also. Blast it! I finally have it running so nicely, then you come along and share some really sensible information... heh heh... Now I am finding...

This is the first time I have seen anyone make a realistic reason to go to an EFI aftermarket system. I have always told folks that going to an EFI system is not about getting more power than one can achieve with carburetor fueling. The reaons I felt warranted the costly move was usually...

It is when I see posts like this that I am so glad I decided to retain the 1973 front and rear bumpers on our 73 Mach 1, as opposed to tucking them or using bumper parts from 71 - 72, and having to deal with all the work involved for what I deem to be nominal benefit. Actually, although the...

Impressive. Thank you for sharing progress photos and info.

It is an interesting build. The rear away bar looks like it would be nearly totally inflexible - which I would hopw equates to better handling. The center bezel has A/C vents, but I do not see any indication the car has an A/C compressor in the engine compartment. I get it is a powerful...