Octane

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HotWheelsBurban

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Houston, Texas
First Name
Carol
Truck Year
1990
Truck Model
R2500 Suburban
Engine Size
350
What Fuel Octane on your 350 TBI
I currently run E10 89 octane mid grade in my daily, '97 Chevy CCLB with a 5.7 Vortec. My '90 R2500 Burb had a 350 TBI in it, and that truck would run on just about anyone's gas. Usually ran 87 from Shell in it.
 

Mango

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JacksonWyoming
First Name
Gil
Truck Year
1989
Truck Model
1500
Engine Size
350
I run 87 Now was thinking to try 85 25 cents cheaper per gal my burb is inhaling the fuel looking to put the original air cleaner assy back on, if i can find the parts The original owner tossed all of it away, Just running a edelbrock filter
 

SirRobyn0

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In the woods in Western Washington
First Name
Rob
Truck Year
1984
Truck Model
C20
Engine Size
305
I run 87 Now was thinking to try 85 25 cents cheaper per gal my burb is inhaling the fuel looking to put the original air cleaner assy back on, if i can find the parts The original owner tossed all of it away, Just running a edelbrock filter
They are out there. My PO did the same thing, I was able to buy a factory air cleaner housing (tall filter version), with tube to cowling from another member on this forum. I feel that having the thermac, and cowl air system working properly helps with gas mileage some.
 

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