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  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

is 750 carb to big

  • Thread starter Thread starter m66ustang
  • Start date Start date May 25, 2007
M

m66ustang

New Member
Jan 12, 2007
3
0
0
May 25, 2007
#1
  • May 25, 2007
  • #1
have a 66 mustang with 83 5.8 bronco engine with just a edelbrock performer intake torque cam and 750 edelbrock carb it bogs out and misses around 2500 and up and runs like crap when temp gets to around 200degrees is that carb to big
 

65fastbackresto

Active Member
Apr 13, 2007
1,229
7
39
AR
May 25, 2007
#2
  • May 25, 2007
  • #2
Try smaller jets maybe

A buddy of mine overcarbed his and kept backing down the jet sizes till he got it right. That carb does sound big for that motor though.
 

rbohm

Founding Member
Apr 12, 2002
6,698
550
204
tucson,az
May 25, 2007
#3
  • May 25, 2007
  • #3
750 is not too big for a 351ci engine. i would look for other causes like a bad ignition module, a bad vacuum switch etc.
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
12
69
B.C. Canada
May 25, 2007
#4
  • May 25, 2007
  • #4
I have a 750 on a 351w. it runs rich but I can get all the bogs out of it. I would be looking at timing and things like that. BTW how old is the carb? And when is the last time you gave the engine a tune up?
 
M

m66ustang

New Member
Jan 12, 2007
3
0
0
May 26, 2007
#5
  • May 26, 2007
  • #5
not sure how old the carb is or last tune just got the car not to long ago but ive noticed when i pull the vacuum hose off it doesnt do anything so it could be the carb and the guy said he got the bronco electric ignition on there have no idea what hes talking about it does have three wires and some kind of bronze box hooked up to it ? thanks for the replies iam new here can get pix if helps i would ask around here but everyone and there mom likes imports
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
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0
south louisiana
May 26, 2007
#6
  • May 26, 2007
  • #6
You need to spend time tuning the engine. Set the initial timing to 10-12 degrees BTC. You more than likely need a larger radiator in that 66 Stang for a 351.
 
M

m66ustang

New Member
Jan 12, 2007
3
0
0
May 26, 2007
#7
  • May 26, 2007
  • #7
i have the 351w swap radiator from mustangs plus and zirgo fan but its hard to get a big fan cause there isnt to much room and timing is at 12
 
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