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While this isn't my first classic Mustang, it's my first in almost 20 years. I'm trying to "finish" a '73 q-code Mach 1. It's a project for sure. The electrical systems are the most scary part of the project. Hopefully I'll be able to find someone to guide me.


Anyway, I'll try to post a photo...



1973 Mach 1 Q-code C6 3:50

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welcome from CA!



73 Grande

351C 2v

Now 4v Carb/Cam/headers/T5


Gasoline is for washing parts.

Alcohol is for drinking.

Nitomethane is for racing!



Work in Progress photos here:

Last Update: 4/23/16

























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Welcome. The front fenders on your car are 71-72 as is the grill the lower fascia and the bumper. I can't see the rear bumper clearly, but it looks to be 71-72 as well. A proper Mach 1 should have a honeycomb tail light panel trim as well.


Now having spotted those issues, I'll say this as a 1973 Q code owner. I would love to have 71-72 fenders and the chrome front bumper. I would love to change my rear bumper mounts to the earlier style and tuck my bumper in closer and get rid of the filler panels. If I had to replace my tail panel and had the choice, I would not use the trim panel. I prefer my hood's paint treatment, but other than that when I finally have to break down and repaint, my car will end up looking more like yours!


Great looking car any way you slice it!



"I love my Hookers!" and "Get some Strange" probably have a different connotation to non automotive enthusiasts!

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Welcome from TriCities WA.



351C 4V cc heads, 10.5 : 1 CR, 290 Herbert cam, Flat top forged pistons, forged connecting rods, Atomic efi,

C6 with Gear Vendor overdrive, 3.89 Tru Trac, Hooker Super Comp with 2 1/2" Pypes Exhaust.        


Some Mod pictures can be seen at: [button=http://www.7173mustangs.com/forum-garage?filterxt_uid=2026]Bojo's Garage[/button]



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Welcome from Denmark ;) Nice looking ride you have there! Yes, it is not my strong side too, but I have learned a lot about the auto electrics. My car has a new painless system, because the original was so bad that it was cracking / smelting! Good luck with the project!::thumb::


Regards DK73

So I'm a proud owner of one Mach 1 73! Regards Lars DK73:whistling:

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Thanks for the replies and welcomes! What a great site!


Yes, the project started out as a Boss 351 tribute. 1971 front end and a smoothed out gas panel. But I haven't committed to the blacked-out hood/tail paint scheme. Plus, I prefer the 1973 side stripes. (I respect original restorations, but I'll make this what "I" want.)


I guess I need to get a manual. Clymer or Haynes or ?? I'd love to learn more about this Painless wiring....

1973 Mach 1 Q-code C6 3:50

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Welcome From Rhode Island.


That's the nice part about these cars, its very easy to modify to make it the car you always wanted.


1972 Mustang Convertable :run_horse:  [button=http://www.7173mustangs.com/forum-garage?filterxt_uid=1507]Visit My Garage[/button]

Visit the Mustang Car Club of New England Facebook Page [button=https://www.facebook.com/MUSTANGCCNE]MCCNE FB Page[/button]


Visit the Mustang Car Club of New England Web Page [button=http://www.mccne.com/]MCCNE Web Page[/button]

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Welcome from Phoenix!


73 Convertible - 351C/4V CC heads/4bolt/forged flat tops/comp 270/rhodes/mallory unilite/tri-power/hookers/glasspacks/c6/3.50 limited slip/Gear Vendors/Global West sub frames, strut rods and shelby style traction bars/ Rear sway bar/tilt steering (not original)


Pics of modifications included in: [button=http://www.7173mustangs.com/thread-1973-convertible--3335]My Garage[/button]


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Welcome from Iowa. Great looking car. The wiring on these isn't as bad as you would think. As long as you have a meter, lots of patience, and the ability to twist like a pretzel under the dash. :) I rewired a British Sports Car from the 60's, that was a fun one (1963 Triumph Spitfire)!

73 Grande H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.


- Jason





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Welcome to the forum, great looking car. Most of issues that are electrical on these cars are due to bad grounds and corroded connections. Some steel wool and cleaning the grounds goes a long ways unless you current harness has been hacked up. We do have a member that repairs stock harness also, midlife. Install a battery disconnect and always throw the switch or disconnect to ensure there is never a fire while you are away.


When a man is in the woods and talks and no women are there is he still wrong??:P


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Welcome from Oklahoma.



1971 Boss 351  

1972 Q code 4 speed convertible 

1971 Mustang Sportsroof  351-2V FMX 

1971 Hardtop (parts car)

1973 Mach 1 (parts car)

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