| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
08-30-2010, 11:17 AM
|
||||
|
||||
Carburator issue!
My carb on my 68 is not opening up all the way when I get on it. Its a holley 600. I dont know how old it is, but somebody told me that it might be a vacuum issue?
|
|
#2
08-30-2010, 03:14 PM
|
||||
|
||||
|
How do you know it's not opening all the way?
__________________
 frittering and wasting the hours in an off hand way.... 1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core. 
|
|
#3
08-31-2010, 12:33 PM
|
||||
|
||||
|
you can usualy hear the four barrels open up and its not when i stomp on the gas.
|
|
#4
09-01-2010, 07:05 AM
|
||||
|
||||
|
Could be a vacuum diaphram that is bad if it has vacuum secondaries.
__________________
1971 Pontiac GT-37 Car is a junk yard dog and maybe one day will be restored. 
|
|
#5
09-01-2010, 08:56 AM
|
|||
|
|||
|
Same here. I'll listen in.
__________________
1969 LeMans vert, 400 1971 Corvette 1964 Cadillac Deville so far.... http://s233.photobucket.com/albums/e...1969%20LeMans/ |
|
#6
01-12-2011, 03:27 PM
|
||||
|
||||
|
Got a new carb 650 holley and my throttle cable is stretched out and I want to replace it. I went to py and they only have a cable for the 2barrel carb for my car can i use this on my car with a holley carb? any suggestions?
__________________
Jason  1968 lemans :In progress!  1970 Bonneville 455 HO convertible (survivor)sold 1969 firebird |
|
#7
01-24-2011, 08:40 PM
|
|||
|
|||
|
Well since it's not the original carb anyway you should be able to make the 2bbl cable work.
|
|
#8
01-24-2011, 09:13 PM
|
|||
|
|||
|
On the original question, make sure the rear butterflies are free. I had one of those universal 0-1850 vac holley carbs that I never really got on. Noticed after stomping on it one day that they didn't open and found the shaft had corroded in the housing and the vacuum couldn't pull them open. My advise is to ditch the holley. I ran them for years because I fell into the "quadra-junk" thinking trap from everyone around me. I put a quad back on it when I got into numbers originality and the first thing I noticed was how much better the car ran. You couldn't pay me to run a Holley anymore. I'm sure there are those out there that'll tell you differently and it's all in the setup but I can only give my opinion from my own experiences on the matter!
|
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
