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carb issues
#1
Alright guys here is the issue, I got a nice driver quality 76 charger as payment for rent the other day and it has a slightly built 318 in it that puts out around 250-260 hp. the vacuum secondaries didn't work but it drove nice and stopped very well. Today I put a smaller carb with mechanical secondary ( 750 to a 650) it runs nicer under 3k rpms and now I can't stop to save my life the pedal goes to the floor and won't hold the car still if you go above idle with the brakes held the booster is plumed to the manifold so I didn't mess with that. What is going on here?

[Image: 2cossj6.png]
97 F150: wrecked, 96 Dodge 4x4: blown motor / donated to the base
88 Suburban 4x4 355 cid 8 inch lift: sold, 95 Celica 5 speed : sold
68 F750 391 cid : sold,  96 F350 7.3 diesel dually : sold
86 Chevy 1500 305 cid c1500: sold, 73 Mustang mach 1 466 cid 5 speed : under construction
89 F350 4x4 cummins swap : sold, 64 Dodge d600: gone
00 Excursion: traded, 72 Mustang mach 1 302: scrapped
73 Mustang coupe: scrapped, 73 ranchero gt
06 Honda crf 450x : sold, 04 Honda vtx 1800
88 Bronco xlt lariat: sold, 76 Charger: traded
95 F350 4x4: sold , 91 Crown Victoria 302: sold
02 Dakota: traded, 96 f250 powerstroke: parts truck
87 f700, 98 e350 powerstroke: sold
03 land rover: traded, 95 f350 dually: part out
95 f350 dually: traded, 94 f150 4x4: traded
97 f250: sold, 76 Maverick 302: sold
91 240sx rb25: sold, 86 firebird: sold
86 Trans Am: sold, 88 westernstar: sold
89 dodge d350: sold, 2000 Dakota 4x4: sold  
84 f350 3+3: sold, 90 bronco: partout
67 catalina, 64 chevy c60
64 jeep j200, 74 corvette stingray
79 Lincoln mark V, 2013 f350: goldilocks
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#2
Double check that the pcv, egr, and power brake lines are connected.

Could just be coincidental. Did you check the fluid level? If it's OK I and you don't have a rusted out brake line, a bad caliper or wheel cylinder I would suspect the master cylinder or the brake booster.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#3
Sorry I can't help with the carb prob, but wanted to say welcome back, Jordan. We'll help you get it figured out, regardless.

Doc

[Image: 6y14ea.jpg]

Project started 8-7-10
Completed: All new suspension, rebuilt 351C H Code bored .030 over with mild cam and intake, new 3.50 TracLok, custom exhaust system
Current "mini-project": interior upgrade Undecided
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#4
Off the wall but check if the booster is holding vacuum by... with motor off pull the
vacuum fitting off the booster and you should hear air rush in... if not that plastic fitting
is bad... it's a one way check valve.

Good luck
Paul
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#5
I don't think a booster issue will show up as the pedal going to the floor. My guess is bad MC or air in the lines.

How does the pedal feel when the car is not running?

'Mike'
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:
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