Holley tuning

Mustang Australia
« previous next »
Pages: [1]   Go Down

Author Topic: Holley tuning  (Read 3177 times)

Offline ron

  • Worked
  • ***
  • Posts: 348
ron
Holley tuning
« on: February 25, 2006, 12:21:40 pm »
Having probs with this 600 vac sec (ever since new) so I've borrowed another one until I can figure out what to do. Question is how, does one adjust the mixture to get it to run smooth? I can set the timing by ear but I've never learnt to tune a carb,go figure. Thanks
Logged
Money is made to be spent.

Offline Bashfull

  • Thoroughbred
  • **
  • Posts: 125
Bashfull
Holley tuning
« Reply #1 on: February 26, 2006, 07:52:33 am »
is the carby 100% no power valve promblems warped bowls that up set vacumn.

otherwise make sure it is jeted right...in my experince some holleys are underjetted need you to kivk in the 4 barrles people think smaller is beter...wrong...
Logged

Offline 66ccode

  • Stallion
  • **
  • Posts: 60
66ccode
Holley tuning
« Reply #2 on: February 27, 2006, 08:16:53 am »
Get a full Dyno tune. They will measure and adjust the Air:fuel ratio, and do timing with the engine under load.
Best $200 I spent after buying a brand new Holley 465.
Logged

Offline ron

  • Worked
  • ***
  • Posts: 348
ron
Holley tuning
« Reply #3 on: February 28, 2006, 11:29:05 am »
Problem is it was dyno'd last year, and it has been going crap for the past few months,missing under hard hammering and stalling at idle.Figuring its dirty or somethings wearing inside.
Logged
Money is made to be spent.

Offline dazza

  • Pony
  • **
  • Posts: 28
dazza
Holley tuning
« Reply #4 on: March 09, 2006, 02:04:32 pm »
Quote

Question is how, does one adjust the mixture to get it to run smooth?


On a warm engine grab a vac guage, plug it into one of the bottom vac ports on the carb (full manifold vac) and adjust the mixture screws to get the highest vac reading.

Holley website has tech support pdf's to download, that can step you through tuning up your carb, 600 with vac sec should be a 1850 or similar (on the choke housing), try this link. (might take a bit if you are on dial up)

http://www.holley.com/data/TechService/Technical/Carburetor%20Tech%20Info.pdf

Good luck!
Logged

Offline ron

  • Worked
  • ***
  • Posts: 348
ron
Holley tuning
« Reply #5 on: March 11, 2006, 12:46:28 pm »
AAArrrggghhh found the problem. A manifold bolt was loose.Now that I've fixed that, I can now get my auto recon'd (3rd time in 10 years). If it's not this it's that,if it's not that, it's this.
Logged
Money is made to be spent.

Offline HEVEN67

  • Top Streeter
  • ******
  • Posts: 3769
HEVEN67
Holley tuning
« Reply #6 on: March 24, 2006, 08:42:51 am »
I just put a quadrajet on my 289,Fantastic.smooth and better fuel econ,
"I fecken I luv em"
Logged
A successful man is one who makes more money than his wife can spend. A successful woman is one who can find such a man.




Real muscle cars have 3 pedals. Where theres smoke theres Tyres

Offline 2233

  • Blue Printed
  • ****
  • Posts: 1059
2233
Holley tuning
« Reply #7 on: March 24, 2006, 09:29:05 am »
Do you mean Rochestor quadrajet?
Logged
Pages: [1]   Go Up
« previous next »