427 SBF

BOSS#1540 said:
Or, if it's a street car, always stay on the small side.
That's why I went with a 1250cfm on my street car 😆🤣
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Yea but that makes perfect sense on your combo. The Cleveland flows 1000cfm at idle.

I just can't compete with that even if i had duallie style turbos for my turbos so I can spool while I'm spoolin
 
Why dual-plane? Do you have an intake yet? If you don't, get the Edelbrock EFI intake, it's a single plane and will work well for you. Just stick some junk injectors in the holes to plug the holes, or I know there are places that sell actual hole plugs. This way you can try EFI later if you want to. You need an intake anyway right............

The Holley Terminator ECU is a very cheap way to get into GOOD EFI. I have installed a lot of them. Going to put one in my 1996 Dually just because.......... :)

And with a manual trans, you really want a single-plane intake. No need for extra low speed torque, you will want to wind it out and have fun.
 
89 Fox 427 said:
Yea but that makes perfect sense on your combo. The Cleveland flows 1000cfm at idle.

I just can't compete with that even if i had duallie style turbos for my turbos so I can spool while I'm spoolin
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It's an 8600rpm deal at around 400 cubes with a single 4150 carb, shooting for 800hp
To be fair, whitener said the 1250cfm twin blade 4150 style flows similar to a 1050 domi.
You could always stay on the small side, then have a bigger one for the track ?
 
Briansshop said:
I would NEVER put a dual plane on a 427 cube small block.
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WELL NO SHIT BRIAN

20240908-174845.jpg
 
Briansshop said:
Nope. I'd put some gear it.
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Lol, yes, but that wasn't an option 😆.

I've got a 414c with 351c 2v heads and dual plane eddy intake in my bronco. It's an everyday work/hunting truck and I wanted as much low end tq as possible. But I've always wanted to try one of the old small single plane intakes they made for the 400
 
But he has a 5spd trans. Who wants low rpm torque when you can wind the engine out in any gear at anytime?

When I put a car back system on my 2014 Camaro I lost a decent amount of gas mileage. Why you ask?

Because at 3000 and above that system sounded so phucking nice I never shifted at a lower rpm again EVER!

My wife thought I was crazy until she drove it and she agreed 100%, that was a SWEET sounding exhaust system. I never even put the headers on, I figured it would just kill or change the sound, it was perfect.
 
Mike Beck said:
But he has a 5spd trans. Who wants low rpm torque when you can wind the engine out in any gear at anytime?

When I put a car back system on my 2014 Camaro I lost a decent amount of gas mileage. Why you ask?

Because at 3000 and above that system sounded so phucking nice I never shifted at a lower rpm again EVER!

My wife thought I was crazy until she drove it and she agreed 100%, that was a SWEET sounding exhaust system. I never even put the headers on, I figured it would just kill or change the sound, it was perfect.
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6 speed, get your facts right!

I personally think I'm going to love snappy 1/2 to 3/4 throttle 2500-5500 street drives.

Shifting at 6200 I don't need a huge carburetor. Every calculator out there will be right on the 750cfm range at 95%VE.

Should I decide to track it and require the best run possible sure I'll put a 950 on there and see what it'll do yanking gears at 7200. And yes, I already have the dual plane, and not enough hood clearance for a super vic. Unfortunately when I made my brake lines I didn't account for a k-member spacer, so hood clearance is what it is.

Peak hp at 6k will be just fine for now. I need to get traction sorted out before I give one fuck about carburetor size
 
Mike Beck said:
But he has a 5spd trans. Who wants low rpm torque when you can wind the engine out in any gear at anytime?

When I put a car back system on my 2014 Camaro I lost a decent amount of gas mileage. Why you ask?

Because at 3000 and above that system sounded so phucking nice I never shifted at a lower rpm again EVER!

My wife thought I was crazy until she drove it and she agreed 100%, that was a SWEET sounding exhaust system. I never even put the headers on, I figured it would just kill or change the sound, it was perfect.
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Im not sure where the dual plane intake came up. Just saying why I'm using one on a 414 and still wondering if it would respond to a 400 single plane better and not lose bottom end torque
 
BOSS#1540 said:
I've got a 414c with 351c 2v heads and dual plane eddy intake in my bronco. It's an everyday work/hunting truck and I wanted as much low end tq as possible. But I've always wanted to try one of the old small single plane intakes they made for the 400
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My Son's. 460 with Edelbrock heads,Holley Sniper. ZF5 speed. On 1 tons.

 
Briansshop said:
My Son's. 460 with Edelbrock heads,Holley Sniper. ZF5 speed. On 1 tons.

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Very, very nice 👍.
Mines an '89 with 10" lift and 39.5 " iroc super swampers. A little darker grey with a bit of burgundy pearl and matt black cap. The 414c gets 13 mpg and has lots of low end tq, I'm quite happy with it.
 
Brian, I assume the 1 tonne allows for lower gears than my original front casing.
That's why I didn't bother with gears, could only go so low in original front end
 
89 Fox 427 said:
6 speed, get your facts right!

I personally think I'm going to love snappy 1/2 to 3/4 throttle 2500-5500 street drives.

Shifting at 6200 I don't need a huge carburetor. Every calculator out there will be right on the 750cfm range at 95%VE.

Should I decide to track it and require the best run possible sure I'll put a 950 on there and see what it'll do yanking gears at 7200. And yes, I already have the dual plane, and not enough hood clearance for a super vic. Unfortunately when I made my brake lines I didn't account for a k-member spacer, so hood clearance is what it is.

Peak hp at 6k will be just fine for now. I need to get traction sorted out before I give one fuck about carburetor size
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I tried a bigger carb on mine when on the dyno back with unported heads flowing 341cfm, 240cc intake port, on a 409 and it lost power. My carb was a 850 aed holley, tried a 1050 domi iirc. That was the 268/276 @ .050 cam running to 7000
 
BOSS#1540 said:
I tried a bigger carb on mine when on the dyno back with unported heads flowing 341cfm, 240cc intake port, on a 409 and it lost power. My carb was a 850 aed holley, tried a 1050 domi iirc. That was the 268/276 @ .050 cam running to 7000
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What unported head flows 341cfm? Just curious, not doubting you. My race car heads are around there and I know what that cost me.
 
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