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04-14-2004, 10:50 PM
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#1 |
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Registered User
Join Date: Dec 2003
Posts: 69
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Q-jet to holley
Im going to dump this q-jet on my 305 and replace it with a holley
600 is it a strait bolt up or is there anything extra i need?
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85 swb, 5/7, 20" smoothie 2's |
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04-14-2004, 11:56 PM
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#2 |
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Registered User
Join Date: Sep 2003
Location: Lewisville, NC
Posts: 1,836
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If you have a stock intake manifold then you will need an adapter. Q-Jets are better than holleys though. Just about anybody on this board will tell ya that, but if you want to put the holley on go ahead, I think the holleys do sound better but its a pain in the ass to mess with all the time.
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1985 Scottsdale Shortbed 4x4 Stout 350 with some "upgrades"-700r4-33x12.5" Mud Tires, Warn 8274-50 winch. 2005 Chevrolet Colorado Regular Cab 2wd 4-banger, 5 speed, Street Pack with 3.73 axle. |
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04-15-2004, 12:15 AM
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#3 |
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Account Suspended
Join Date: Oct 2002
Location: Elkhart, IN
Posts: 6,399
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a Holley wont give you any better performance, milage, plus they wont hold a tune like a QJet will. do your homework on the QJet, and you'll be much happier with the results. 600cfm seems a little large for a 305.
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04-15-2004, 12:36 AM
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#4 |
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Registered User
Join Date: Nov 2003
Location: st. louis area
Posts: 1,551
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I agree QJETS are great when tuned properly. 600 cfm is a little bit much for a 305 unless its real healthy, thats one thing nice about a qjet, because of the spread bore design, its more forgiving.
I had a 570 CFM Holley on my 305 that I ran to 6000 RPMS regularly.
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75 GMC C-15 short/step factory 454, lowered |
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04-15-2004, 08:07 AM
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#5 |
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Registered User
Join Date: Dec 2003
Location: CT
Posts: 454
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If you decide to dump the qjet, i'd be interested in buying it...I've got an 85 305 and I could use the spare...
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