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73-87chevytrucks.com
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73-87 Chevy _ GMC Trucks
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'81 305 stock carb
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Topic: '81 305 stock carb (Read 2381 times)
81project
New Users
Posts: 2
'81 305 stock carb
«
on:
October 07, 2008, 07:40:47 PM »
I can't find an answer to my question anywhere. Is the stock 4bbl carb on a 1981 305 square or spread bore?
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VileZambonie
Global Moderator
Senior Member
Posts: 19028
Re: '81 305 stock carb
«
Reply #1 on:
October 07, 2008, 08:11:37 PM »
Quadrajets are spread bore.
Holley's are square bore.
You should have a Q-Jet
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/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
TexasRed
Junior Member
Posts: 727
Re: '81 305 stock carb
«
Reply #2 on:
October 07, 2008, 08:15:51 PM »
Not all holleys are squarebore. In fact, they made a ton of spreadbores.
The factory carb should be a spreadbore qjet from 1981 but it may have been changed before you got it.
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81project
New Users
Posts: 2
Re: '81 305 stock carb
«
Reply #3 on:
October 07, 2008, 08:21:11 PM »
Thanks guys. I assume it is a spread bore then. It is a Rochester Qjet.
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VileZambonie
Global Moderator
Senior Member
Posts: 19028
Re: '81 305 stock carb
«
Reply #4 on:
October 07, 2008, 08:28:14 PM »
Yes holley does make spread bores I 've got a few of them in stock but stock carb is a spread bore.
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, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
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'81 305 stock carb