• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Little issue with the Mach 1
Try cleaning out the air bleeds on the carb with carb cleaner and a small strand of wire. The bleeds are on the top of the carb near the bowl vent tubes. They are small brass inserts. Chuck
When mine sites for a while one of the floats gets stuck and too much fuel gets into the manifold. It runs like crap, I have to feather the throttle to keep it running and I can't drive it. If I try again a day later the float typically unsticks itself and it runs fine.

Put a fuel pressure gauge on near the carb. Even a cheap one will give you a baseline reading and let you know if there is a problem with fuel delivery.

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:
What about Seafoam?  Anyone use this stuff to clear out your carb?  I am thinking about running some through to see what happens before I go tearing everything apart.

[Image: 1gq8uo.png]
1971 Mach 1 - 306cid/C4 Bright Yellow
"Just relax, I've got a friend named Felix who can fix anything!" ~James Bond
I've used it as a fuel stabilizer in all my small engine tools and generator for many years and it works well for that purpose. I would not be afraid to use it in the tank of a car. I use BG 44K as fuel system cleaner as well as cleaning carbon off the valves, piston tops, and combustion chambers, it works. You might try counting the turns on the A/F screws, remove them, put a couple of squirts of carb cleaner in the holes, and reinstall the screws at the number of turns you counted. It may help, can't hurt. Chuck
Share Thread:  

Possibly Related Threads…
Thread Author Replies Views Last Post
  Trunk lid hinge removal on Mach 1 baz70 3 274 03-24-2019, 05:39 PM
Last Post: baz70
  1972 mach Hoses at manifold vacuum fitting andy72 5 479 02-21-2019, 08:56 PM
Last Post: andy72
Wrench Remove odometer knob Mach 1 speedometer BRUINSam 2 565 11-22-2018, 04:37 PM
Last Post: BRUINSam
Wrench Wiper motor issue John J 6 510 11-04-2018, 05:25 PM
Last Post: JimB73
  Ignition issue MNMustang73 13 988 10-24-2018, 07:48 PM
Last Post: MNMustang73
  oil sender issue John J 6 924 07-20-2018, 02:57 PM
Last Post: John J
  Oil sender issue John J 0 449 07-16-2018, 10:28 PM
Last Post: John J
  '71 Mach 1 turn signal problem Heardatbeat 14 1,153 06-16-2018, 01:56 AM
Last Post: Heardatbeat

Users browsing this thread: 1 Guest(s)