302 Carb ?
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Junior User
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302 Carb ?
Just trying to get a few more HP and who knows; maybe an extra mpg. 77 stock 302 auto. Should finish installing header and duals today. Rebuilt stock 2 barrell and it is fine. Looking at carb threads I keep seeing everyone talking 600 cfm but that seems a bit much to me. This is for arround town and once a month 5 -6 hundred mile camping trip. Max load 1500 lbs. Just want to pull up hill a bit better. Wouldn't something like a 500 cfm Edelbrock be about the best choice. I have no idea what the stock 2 barrel flows but i would think the 500 and a better intake would be closer to what I am looking for. Already installed electric fan. Working on a budget.
Laughing Gas
Joined: Dec 2003
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A 500 would be a good choice for what you're looking for.
I have a 600cfm Edelbrock on my 79 F100 302 C4. I drive it daily, it has great throttle response, and pulls hard when the secondaries open. It may not be "mathmatecially" correct but it works fine for me. I have been averaging around 15mpg.
I have a 600cfm Edelbrock on my 79 F100 302 C4. I drive it daily, it has great throttle response, and pulls hard when the secondaries open. It may not be "mathmatecially" correct but it works fine for me. I have been averaging around 15mpg.
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What model carb is it. They have a 600 "Economy 1400" and a "Towing 1405". Trying to figure which way to go. I'm leaning towards the 1405 as I am more concearned with being able to get up hills a bit better. I know this will never be a power house. Just need a bit more.
Posting Guru
Joined: Nov 2007
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From: Montgomery, IL
Laughing Gas
Joined: Dec 2003
Posts: 900
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Mine is the 1405 a buddy gave me off his 66 Mustang. It was calibrated a bit rich so I tuned it with a wideband oxygen sensor, now she runs like a charm.
Fleet Owner
Joined: Dec 2009
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From: NorCal
A 500 would be a good choice for what you're looking for.
I have a 600cfm Edelbrock on my 79 F100 302 C4. I drive it daily, it has great throttle response, and pulls hard when the secondaries open. It may not be "mathmatecially" correct but it works fine for me. I have been averaging around 15mpg.
I have a 600cfm Edelbrock on my 79 F100 302 C4. I drive it daily, it has great throttle response, and pulls hard when the secondaries open. It may not be "mathmatecially" correct but it works fine for me. I have been averaging around 15mpg.
Since you're improving the engine's efficiency with headers and dual exhaust system, the 600 cfm can still maintain the AF velocity and volumetric efficiency.
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Joined: Apr 2011
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From: DOWN UNDER!!
plus if it's a vac 2nds carby then it's fine anyway because they don't open until later on... mechanical 2nds and it won't run very well for you though.
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