Winter plans
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Laughing Gas
Joined: Dec 2010
Posts: 924
Likes: 1
Winter plans
I work in a seasonal job. I sit at home just thinking what I need to do to my truck. Well I always look at parts and do a lot of reading on here. I'm getting a itch to go back to my Hedman Header that I have just sitting on my garage wall like a trophy. I would do it way different this time around when I first had the header I was younger and didn't know much.
If I were to go header route I think I would get the header powder coated and also I remember having a small leak so I think I would split them down the middle. Also was looking at a newer carburetor I've had my eye on it since AB posted it Quick Fuels HR 450 CFM Mechanical Secondaries.
If I were to go header route I think I would get the header powder coated and also I remember having a small leak so I think I would split them down the middle. Also was looking at a newer carburetor I've had my eye on it since AB posted it Quick Fuels HR 450 CFM Mechanical Secondaries.
Fleet Mechanic
Joined: Nov 2002
Posts: 1,643
Likes: 69
My race cars use headers.
All my street and street/strip cars use cast iron EFI exhaust manifolds.
Durable.
Inexpensive.
Efficient.
You will need to drive a mechanical secondary carb with great restraint to keep from getting the fuel economy of a V8.
All my street and street/strip cars use cast iron EFI exhaust manifolds.
Durable.
Inexpensive.
Efficient.
You will need to drive a mechanical secondary carb with great restraint to keep from getting the fuel economy of a V8.
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Laughing Gas
Joined: Dec 2010
Posts: 924
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I realize that. I don't daily drive this truck it only comes out every other weekend in the spring/summer time goes to car shows things like that and sits in the garage as soon as it gets cold.
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Joined: Dec 2007
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From: Boise, Idaho
Even with 32" tires, I think I'd have to cut a hole in my fuel line to get it down into single digit fuel mileage.
Slayer Series Carburetor 450cfm VS SL-450-VS - Quick Fuel Technology
If I were to get one (which I am still thinking about), I'd get QuickFuel's 450 that uses the vacuum secondaries.
They don't have it listed on their site, but there is also a coated one that looks intriguing.
Quick Fuel Black Diamond Slayer Series Carburetors BD-450-VS
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Laughing Gas
Joined: Dec 2010
Posts: 924
Likes: 1
Slayer Series Carburetor 450cfm VS SL-450-VS - Quick Fuel Technology
If I were to get one (which I am still thinking about), I'd get QuickFuel's 450 that uses the vacuum secondaries.
They don't have it listed on their site, but there is also a coated one that looks intriguing.
Quick Fuel Black Diamond Slayer Series Carburetors BD-450-VS
On the c series intake does it really matter if the primaries are facing forward or towards the back?
Moderator
Joined: Dec 2007
Posts: 7,987
Likes: 104
From: Boise, Idaho
Yeah, I have a 465cfm on mine and it's great. But I can't help but just crave the insane tuneability of the QF.
And yes, the C series doesn't care what direction the carb is facing. The only reason it matters on the DP is simply due to having specific runners for primaries and secondaries. The carb needs to be oriented correctly so that the primaries go in the primary runners, and secondaries into the secondary runners. On the C-series, it's one big opening so orientation is completely irrelevant.
And yes, the C series doesn't care what direction the carb is facing. The only reason it matters on the DP is simply due to having specific runners for primaries and secondaries. The carb needs to be oriented correctly so that the primaries go in the primary runners, and secondaries into the secondary runners. On the C-series, it's one big opening so orientation is completely irrelevant.
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Laughing Gas
Joined: Dec 2010
Posts: 924
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I know dude me too!! I saw videos on how it's way different then a Holley. The thing that made me want mechanical secondaries is a friend of mine has a chevy 307 and we change his cam, intake, and carburetor this past summer. He happen to have a Holley 600cfm double pumper mechanical secondaries. I was amazed I didn't know there was such thing and the way the engine revved when the secondaries opened. All I could imagine is that what if that carb was on my truck (of course in a smaller CFM rating).
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