Carb recommendations?
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Freshman User
Joined: Jun 2008
Posts: 26
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From: Cookville TX
Carb recommendations?
This week they are installing a rebuilt 400 in my 78. They are also putting an aftermarket timing chain set that is set to 0 degrees, headers, cam, and an Edelbrock Preformer intake. I'm thinking I should use around a 650 cfm carb. Does anyone have any carb recommendations as far as brand or type? Does anyone think I should be using a smaller or larger carb?
Lead Driver
Joined: Jun 2006
Posts: 5,633
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From: Near Yosemite CA
Well, bigger is not always better, specially when it comes to carbs, I have an Edelbrock 600 on my 351M, I don't think I would go any bigger. My 300 inline 6, I had a holley 390 4bbl, I could get 15-16mpg all day long, I went to a Edelbrock 500cfm,,, dropped it down into the 12's and it ran a tad rich.
So long story short, I wouldn't recommend going over 600-650 cfm.
So long story short, I wouldn't recommend going over 600-650 cfm.
Thread Starter
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Freshman User
Joined: Jun 2008
Posts: 26
Likes: 0
From: Cookville TX
thanks
Thanks to everyone for their opinion. I will research the different options. I haven't seen the Demon carbs. Who sells those? Also everyone always talks bad about the 351m and 400 saying they are thirsty and underpowered. I know what they are like stock but will these modifications make a big difference or am I wasting my money?
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