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Old 09-25-2003, 10:03 PM   #1
miket
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Carb tuning

Where is the best online resource for this....specifically for an 870 with vac secondaries...
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Old 09-25-2003, 10:16 PM   #2
low 84
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this probly won['t help your question at all. but i ran across this in summit the other day and i'm pretty sure i'm going to buy it. there won't be any guessing whether i'm rich or lean i'll know for sure from idle all the way up where i'm at.

http://store.summitracing.com/partde...art=EDL%2D6593

i think i'm gonna make a face for it to mount it in the ash tray, and when the tray is flipped up you won't be able to see it
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'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works

'05 1500 Crew Cab

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'84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker
'80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's
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Old 09-25-2003, 10:18 PM   #3
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yeah, I planned on picking one of those up, but don't you need two?
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Old 09-25-2003, 10:41 PM   #4
lukecp
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1 should work....most EFI vehicles are set up like that...

I would love to get one of those myself....but don't the O2 sensors only work well around 14.7:1 air/fuel ratio? I think the accuarcy on some gets really poor as they get farther and farther away from 14.7. 14.7 is great for cruising under light throttle....but more like 12:1 is better for power

Oh yeah....i saw a cheap air/fuel guage for $24 at Autozone the other day.......don't think it came with an 02 sensor though....but it is 1/5 the cost of the Edelbrock sensor.
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'72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride.
'70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck.
'97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

Last edited by lukecp; 09-25-2003 at 10:43 PM.
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Old 09-25-2003, 10:53 PM   #5
miket
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Funny, I thought my 94 Caprice had two.....95's up have four from what I hear.

Wouldn't you want one on each header?
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Old 09-25-2003, 10:58 PM   #6
low 84
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i think one is sufficeint. will one side of your motor be running leaner than the other?
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'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works

'05 1500 Crew Cab

RIP
'84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker
'80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's
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