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Good morning, I'm in the process of getting a replacement carburetor for the old Holly that sits on top of the edelbrock manifold. I've decided to replace it instead of a rebuild. I'm looking at the Holly's but have no idea which to buy. My 88 grand is a hunting vehicle that sees some often times rough use. Looking for opinions on which replacement would be the best option? Maybe a holly is not the best choice??Thanks jeff ~
The factory Motorcraft 2150 2v (2 venturi, aka 2 barrel) that your GW came with from the factory is an excellent off-road carburetor. It also works very well on the street, but it's not a "performance" carburetor.
If you go Holley, the Truck Avenger is the obvious choice. Some have reported issues with drivability on the street, but it's also reputed to be great on the trail. I would go with the 470 CFM for a stock engine. https://www.holley.com/products/fuel_sy ... ts/0-90470
Avoid the street Holleys like the 4150 for anything but a street-only vehicle.
Ive been running the Street Demon carb on my J10 for 2 years now. I had to replace the metering valves [tuning process] to eliminate Bogging and a 1" spacer really waked it up. I havent taken it offroad--street use only.
Really? That's good to know. Was the tuning difficult? What kind of intake manifold are you running? Which manufacturer's spacer did you use? I've actually got the carb already, new in the box. My motor isn't going to be re-installed till the spring or summer at the rate I'm currently going.
The metering rods are the same type as a Edelbrock. Basically, add the rods needed for 8-9 inches of vacuum [stock motor], Max the Squirter lever and I purchased a plastic 1" spacer from Summit. The Phenolic is probably better-I bought it to insulate the carb' from the heat but it made a big difference in performance. I pulled the plugs in Dec' and the ratio is Spot-On/ not rich or lean. Im running a Edelbrock Performer intake and NGK V-fire platinum plugs. Plugs look new after two years