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Author Topic:   Carb jet question
69maverick
Gearhead

Posts: 699
From: Thomaston,CT.
Registered: Jan 2001

posted 03-26-2001 08:07 AM     Click Here to See the Profile for 69maverick   Click Here to Email 69maverick     Edit/Delete Message   Reply w/Quote
I have a 650 Holley double that I am going to run on my sons 289 it will have a little bit of a cam headers and a Weiand X-CELerator intake 9.8:1 comp. auto and 4.11's The carb has 67 prims. and 78 secondarys I think there to rich? This combo
has not be ran at all yet! He has a 600 if this one don't work out. But thats alot more work for me. I would love this one to work!

[This message has been edited by 69maverick (edited 03-26-2001).]

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SteveLaRiviere
Administrator

Posts: 21832
From: Saco, Maine USA
Registered: May 99

posted 03-26-2001 03:06 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
According to the Holley web site, most 4777s came with 67/73 jets. I'd start there and see what the plugs say.

------------------
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Loc
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L Disposable Commuter
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69maverick
Gearhead

Posts: 699
From: Thomaston,CT.
Registered: Jan 2001

posted 03-26-2001 06:11 PM     Click Here to See the Profile for 69maverick   Click Here to Email 69maverick     Edit/Delete Message   Reply w/Quote
Steve this intake is more like a small tunnel
ram than a single plane! I was thinking of using 4 of the same jets like 70 or 71?
What do you think?

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