|
08-10-2005, 02:46 PM
|
#1 |
|
Registered User
Join Date: Jul 2005
Location: Athens,AL
Posts: 53
|
305 carb woes
Hey guys,
I,ve been reading on this site for quite a while and you guys really put out some great info! This is my first post though so be gentle. I just bought an '84 Silverado with a 305, 4 bbl. The carb seems a little sluggish at times (cranking especially) and my mechanic tells he put a kit in it for the previous owner last fall. Any suggestions on a carb upgrade/replacement for this manifold? Thanks! 
|
|
|
|
08-10-2005, 03:13 PM
|
#2 |
|
"The dude abides"
Join Date: Apr 2003
Location: North Dakota
Posts: 472
|
What do you mean sluggish especially on cranking?
It takes a while for it to fire? When it is running does it not perform well? Have you checked the choke on the carb? Is this a Rochester? You come for answers and just get more questions! 
__________________
RockMan 1993 Chevy Silverado C3500 1 ton dually 1994 Honda Civic 1969 Oldsmobile Cutlass S 1953 IH Farmall Super M New to the fleet: 1992 Subaru Loyal |
|
|
|
|
08-10-2005, 03:43 PM
|
#3 |
|
Registered User
Join Date: Jul 2005
Location: Athens,AL
Posts: 53
|
Thanks Rockman,
It does pretty well once running but sometimes it's a bear to crank. I usually end up pumping the accellerator like crazy to get it to fire up. Not sure on the rochester part. I'll have to check. Pretty sure it's a spread bore. |
|
|
|
|
08-10-2005, 05:04 PM
|
#4 |
|
'87 V20 4x4
Join Date: Jun 2004
Location: South Western Ohio
Posts: 1,073
|
my Blazer takes bout 6 pumps before starting its always been that way boutonce every few months I start it up and spray carb cleaner in it for several minutes also that seems to help keep it from gumming up and it seems to run better afterwards
Doc
__________________
'86 K5 Blazer 4x4 FOR SALE '87 v20 4X4 '99 S10 Blazer 4X4  
|
|
|
|
|
08-10-2005, 09:54 PM
|
#5 |
|
ureckmefixit2@cox.net
Join Date: Dec 2004
Location: Mesa AZ. (Phoenix)
Posts: 1,284
|
Fuel filter or fuel pump. Matt
__________________
That's U RECK ME FIX it 2 74 Chevy Short Bed 355ci Sportsman II 64cc Angle Plug Crower Custom Grind .462in .486ex Dyno Test 422hp @ 5600 And it's got a Holley 3.73 Gears 12 Bolt 3.73 w/Posi 700R4 Going In I'm a Body Man So There! That's why it's not painted |
|
|
|
|
08-11-2005, 12:30 AM
|
#6 |
|
Gettin It One Pice At A Time
Join Date: Oct 2004
Location: everett, washington
Posts: 2,688
|
By the way
 WELCOME  from washington state!    
__________________
RIP ELJAY   Work In Progress 1979 GMC C1500 Trailering Special. Getting the truck done, one piece at a time. “You can tell a lot about a fellow’s character by his way of eating jellybeans.”Ronald Reagan “I don’t know the key to success but I know the key to failure is trying to please everybody.” Bill Cosby Last edited by 79gmcc15; 08-11-2005 at 12:32 AM. |
|
|
|
|
08-11-2005, 03:46 PM
|
#7 |
|
Registered User
Join Date: Jul 2005
Location: Athens,AL
Posts: 53
|
Thanks for the welcome guys,
This is a rochester Quadrajet spreadbore carb. Seems like I remember Carter coming out with a spreadbore replacement a while back. Is this worth checking into or should I just go with a whole different manifold/carb combo? I'd like power and economy if possible. Thanks, Jim |
|
|
|
 |
| Bookmarks |
|
|
Linear Mode
