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70 Chevelle, 489 BB, Jerico DR4
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Discussion Starter · #1 ·
Was thinking about getting one. I was looking at this a
Autometer version. I'm not sure if the stepper motor version is worth it?

 

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I’ve been using this one with great success for many years. I got digital for this on purpose so I could see the exact numbers.

 

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70 Chevelle, 489 BB, Jerico DR4
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Discussion Starter · #7 ·

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70 Chevelle, 489 BB, Jerico DR4
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2,065 Posts
Discussion Starter · #8 · (Edited)

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70 Chevelle, 489 BB, Jerico DR4
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Discussion Starter · #9 ·
On the home page is says no sensor included, but the instructions say one is. I'm assuming the instructions have proably not been updated.

"There is only Oxygen Sensor and output cables to be connected. Works with only Bosch LSU4.2 Wideband Oxygen Sensor (Part#17014) NOT INCLUDED! "

"Package Includes WB_D2: D2 AFR CONTROLLER GAUGE WB_D2CABLE: D2 HARNESS BUNG: STEEL M18 X 1.5mm WELD-IN BUNG AND PLUG BOSCH_LSU4_2: BOSCH WIDEBAND O2 SENSOR (#17014) LSU 4.2"


Also mentions cam overlap. I have a 108 degree lobe sep?

" Please check your vehicle for exhaust leaks, camshaft overlap and open exhausts because those would cause false lean readings "
 

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1968 Malibu sport coupe, 489 ci. 590 hp 600 tq, RV T-400 Freakshow 3200 stall, 3.73 12 bolt posi
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11,022 Posts

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1968 Malibu sport coupe, 489 ci. 590 hp 600 tq, RV T-400 Freakshow 3200 stall, 3.73 12 bolt posi
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11,022 Posts
AEM 30-4110 looks like a decent set up with all needed parts on Summit for $169.95, in my cart now, the 30-4110NS has No Sensor= NS
 

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70 Chevelle, 489 BB, Jerico DR4
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Discussion Starter · #13 · (Edited)
AEM 30-4110 looks like a decent set up with all needed parts on Summit for $169.95, in my cart now, the 30-4110NS has No Sensor= NS
That's not bad, I see that it uses the newer Bosch 4.9 versus the older 4,2 I wonder what's preferred?
 

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70 Chevelle, 489 BB, Jerico DR4
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Discussion Starter · #15 ·
Yes but dont order the part # ending in NS, = No Sensor
I see that it uses the newer Bosch 4.9 versus the older 4.2 all the rest use. I wonder what's preferred?
 

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1968 Malibu sport coupe, 489 ci. 590 hp 600 tq, RV T-400 Freakshow 3200 stall, 3.73 12 bolt posi
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11,022 Posts
I see that it uses the newer Bosch 4.9 versus the older 4.2 all the rest use. I wonder what's preferred?
I have no idea what's preferred, I've never used one but thinking I should try to get my engine more fine tuned using one, I'm either too rich with my Holley 1000 HP or too lean with the Classic 850 with a 50cc pump, GlowShift uses a 4.9
 

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70 Chevelle, 489 BB, Jerico DR4
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Discussion Starter · #17 ·
I have no idea what's preferred, I've never used one but thinking I should try to get my engine more fine tuned using one, I'm either too rich with my Holley 1000 HP or too lean with the Classic 850 with a 50cc pump

Nice, that should help you out.
 

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70 Chevelle, 489 BB, Jerico DR4
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Discussion Starter · #19 ·
I just Edited, GlowShift uses a 4.9
I don't know if you saw my post on my Holley booster issue, but I have 4781-5 that has booster pull over and it's fouling plugs. Mostly in the corner of that particular booster. I'm going to try another carb today to rule out an other issues. Then I was thinking about buying an HP 1000
 

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1968 Malibu sport coupe, 489 ci. 590 hp 600 tq, RV T-400 Freakshow 3200 stall, 3.73 12 bolt posi
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11,022 Posts
If you go to Holleys website they have deals on Return/Rebuilt carbs
 
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