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#1 |
Senior Member
Join Date: Feb 2006
Location: Las Vegas
Posts: 1,378
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Electric Choke Q-Jet On 67-72??
For the people that have stock electric choke Q-Jet carburetor's on your 67-72 trucks, how do you make it function? I have one installed on my 70, but dont know where to get the circuit to make it work. Anyone knows where to splice a wire or hook it from? Thanks!!
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1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD) |
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#2 |
Registered User
Join Date: Mar 2005
Location: Graham, NC
Posts: 23
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Re: Electric Choke Q-Jet On 67-72??
You should be able to pull from any 12V source as long as it is only hot while ignition is on. If not a fused source I would add a fusible link. I believe Holley recommends 10A fuse so you should be fine with that on Rochester also. I would NOT connect it to the coil. That could possibly cause you problems. Hope this helps.
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If It'll roll I'll race it!!!
Last edited by sbrad701; 02-22-2009 at 09:59 PM. |
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#3 |
blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: Electric Choke Q-Jet On 67-72??
I went to the fuse box.
tapping into the coil feed will cause driveability issues. |
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#4 |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Electric Choke Q-Jet On 67-72??
I think the M&H Harness I have taps power from the starter somewhere.
All I know it looks clean! s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() |
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#5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Electric Choke Q-Jet On 67-72??
I don't see where there would be a wire on the starter for this... the starter has one wire that is hot all the time (bettery cable) one or two wires (depending on ignition system) that is hot when you are holding the key to start... that's it.
As indicated above, you need a key on source... ignition unfused is a perfect place. That would be a 10 amp fuse... not 10 volt. |
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#6 | |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Electric Choke Q-Jet On 67-72??
Quote:
s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() |
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#7 |
Registered User
Join Date: Mar 2005
Location: Graham, NC
Posts: 23
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Re: Electric Choke Q-Jet On 67-72??
My appologies for the typo longhorn man. It is now corrected.
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If It'll roll I'll race it!!!
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#8 |
Registered User
Join Date: Sep 2001
Location: Hacienda Heights, California USA
Posts: 474
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Re: Electric Choke Q-Jet On 67-72??
Luis, I checked my wires on my truck. I installed an Edelbrock 1406 around 9 years ago, so my memory is rusty.
Seems the red, (hot wire), goes from the choke to the positive side on my ballast resister. From there the hot wire, goes into the fuse block under the dash, to a 12 volt power source. My truck originally had a divorced choke, so I didn't have a power source, when I installed the 1406. Hope this info helps.
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'72 GMC custom camper 350/350 |
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#9 |
Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
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Re: Electric Choke Q-Jet On 67-72??
I used the switched hot wire that goes to the connector for the TCS relay. Most trucks have it hanging there unused anyway. Just crimp on a male spade connector and plug it in there.
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Tim |
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