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  #16 (permalink)  
Old 06-10-2011, 02:46 PM
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Mine starts better than the single carb 350 in my other hot rod.

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  #17 (permalink)  
Old 06-10-2011, 02:53 PM
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Mine starts up on a dime. I use the choke setup on the rear carb., only.
Just google tunnel ram 406 and you see what I mean.
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  #18 (permalink)  
Old 06-10-2011, 03:53 PM
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Quote:
Originally Posted by against all odds
How do carbed tunnel rams start though?
Starting is not an issue. But you want to let the motor run for a while at a rised rpm above idle to allow it to warm up.

Hold it at around 2000rpm so it can warm up.

When some heat gets into the runners its ready to drive.

Functional chokes and fast idle, help.
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  #19 (permalink)  
Old 06-11-2011, 02:21 AM
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Quote:
Originally Posted by BBCRedline
I have been thinking about running a weiand tunnel ram I have on my bbc but not sure which 4150 carbs to get?
Have you also given any thought to the big hole in the hood of your Camaro that's gonna be needed?
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  #20 (permalink)  
Old 06-12-2011, 03:52 PM
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I have thought of the cutting the hood thing. I have a lift off hood Harwood hood, so I can run the thing and see if I like it before the opening has to be made. I was just on the phone this last week talking to Joe Sherman about the whole tunnel ram thing. He likes them and says they can be a magical 100 hp add on. I will not be buying any demon carbs, basically because they are out of business and I owned one once and that was enough.
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Old 06-12-2011, 04:41 PM
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He said 100hp? Under what specific conditions?
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  #22 (permalink)  
Old 06-12-2011, 05:34 PM
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This is based on my 540 with afr 335 cnc heads at 720 or so hp without it. I bolt on the tunnel ram and I could see up to 100 hp gain. Maybe 75 or 105 or who knows. I will have to dyno it both ways.
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  #23 (permalink)  
Old 05-11-2014, 07:44 PM
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This is a follow up on the tunnel ram that I bought and motor combo. The engine ended up being a 540 with AFR 335 heads at 10 to 1 compression. Edelbrock tunnel ram with 2-750 QF carbs works awesome with timing locked out at 34*. As far as things changed on the carbs I removed the jet extensions and idle feed jets are 30.
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  #24 (permalink)  
Old 05-12-2014, 06:15 AM
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Very nice. √←
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Old 05-12-2014, 08:38 AM
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Quote:
Originally Posted by BBCRedline View Post
I will not be buying any demon carbs, basically because they are out of business and I owned one once and that was enough.
Just noticed an ad for the Street Demon in july '14 Hotrod (pg 141), had a little faint Holley logo just above the Street Demon name...
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  #26 (permalink)  
Old 05-12-2014, 12:44 PM
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Barry Grant/Demon Carbs was bought up ny Holley and relaunched
as a new company.
Demon Fuel Systems
www.demoncarbs.com
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