Carb ?

83GTMUSTANG · 10-09-2005, 10:52 PM

How Many Turns Should A Stock 85' Holley Carb. Air /fuel Mixture Adjusting Screws
Be Turned Out,,,,,,my Gas Mileage Sucks 12.4 Mpg Help!!!!!

surfsup · 10-10-2005, 09:03 AM

You really need a vacuum gauge to adjust the carb, 12 mpg not to bad, is the motor stock? When I did my swap I was getting less then 8 mpg around down with 2.73 gears, and I did everything imaginable to fix the problem, but nothing worked, I changed over to 3.73, I now get 11 around town and 24 on the highway. And that’s 5 gear 70 plus, with an occasional wheel spin out of the toll booth, Some times I wonder if everyone is totally honest when the post there mileage, and city driving is high teens, everyone I ever talked two all had one complaint, city mileage sucked. 15 and less. And 15 was granny driving.

10-09-2005, 10:52 PM	#1
83GTMUSTANG N-V-ME Join Date: May 2005 Location: SOUTHFIELD,MICHIGAN Posts: 155	Carb ? How Many Turns Should A Stock 85' Holley Carb. Air /fuel Mixture Adjusting Screws Be Turned Out,,,,,,my Gas Mileage Sucks 12.4 Mpg Help!!!!! __________________ 88' LX MUSTANG: LINCOLN ROTORS , AIR SUSPENSION FRONT AND REAR, SUBFRAMES, ROLL CAGE, 92' BLOCK, MSD 6AL, ACCEL 8.8 WIRES, ACCEL COIL, EDELBROCK F4B INTAKE (PORTED),2 IN. 4 HOLE SPACERS, HOLLEY 600 CARB.,HOLLEY BLUE FUEL PUMP AN REGULATOR, E 303 (.498 IN. 220 DUR.) CAM, (.535 IN. OF LIFT W/ 1.72 SCORPIN ROLLER ROCKERS), PORTED E7'S, FLOWTECH 1 5/8 LONG TUBE HEADERS, 2 1/2 IN. H PIPE, 2 CHAMBER FLOWMASTERS WITH 3 IN.DUMPS, T-5, 3.73 GEARS, 5 LUG AEROSTAR AXELS, 245-45-17 96' COBRA WHEELS

10-10-2005, 09:03 AM	#2
surfsup Registered Member Join Date: Sep 2004 Location: jersey Posts: 147	Re: Carb ? You really need a vacuum gauge to adjust the carb, 12 mpg not to bad, is the motor stock? When I did my swap I was getting less then 8 mpg around down with 2.73 gears, and I did everything imaginable to fix the problem, but nothing worked, I changed over to 3.73, I now get 11 around town and 24 on the highway. And that’s 5 gear 70 plus, with an occasional wheel spin out of the toll booth, Some times I wonder if everyone is totally honest when the post there mileage, and city driving is high teens, everyone I ever talked two all had one complaint, city mileage sucked. 15 and less. And 15 was granny driving.

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