Best Holley carb for 347 stroker combo?

NicksBullitt

New Member

May 31, 2004

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Holly Ridge, NC

Jul 17, 2007

#1

• Jul 17, 2007

• #1

My dad is putting together a 347 stroker, pretty hot package, but does not know which carb to go with. He was thinking a 700, but I did not think that it would be enough . We have looked and really haven't seen anywhere that really outlines HERE IS WHAT YOU NEED. So looking for suggestions......

347 stroker Forged Rotating assembly
Lunati Voodoo 61004 cam ~540 lift 280 duration.
Aluminum heads Pro Comp 190cc
roller rockers TRW 1.6 Stainless
Edelbrock Dual Plane High Rise
4sp toploader
9" 3.73

Any guidance is appreciated!

 

cjones

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Jul 20, 2002

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Avondale, AZ

Jul 17, 2007

#2

• Jul 17, 2007

• #2

use this formula:
Engine size (cid) x max. rpm/3456 =cfm

cfm x engine efficiency(note-race car engines are 90-95% efficient)

 

NicksBullitt

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May 31, 2004

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Holly Ridge, NC

Jul 18, 2007

#3

• Jul 18, 2007

• #3

If you don't mind me asking, where did that formula come from?

My math comes up with ~700. I would have thought he needed a 750, but I really don't know. Thats why I asked.

 

cjones

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Jul 18, 2007

#4

• Jul 18, 2007

• #4

NicksBullitt said:

If you don't mind me asking, where did that formula come from?

My math comes up with ~700. I would have thought he needed a 750, but I really don't know. Thats why I asked.

Click to expand...

it's all over the net but mine came from:

"Engines" Hot Rod's High Performance Series Volume 4, Number 1 - by Hot Rod Magazine copywrite 1987 by Peterson Publishing Co

 

NicksBullitt

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May 31, 2004

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Jul 19, 2007

#5

• Jul 19, 2007

• #5

Updated specs!

 

cjones

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Avondale, AZ

Jul 19, 2007

#6

• Jul 19, 2007

• #6

NicksBullitt said:

Updated specs!

Click to expand...

what do you mean??

the engine is just an air pump. always was and always will be.

the formula is how much air can be pumped thru the engine in one minute.

 

NicksBullitt

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May 31, 2004

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Holly Ridge, NC

Jul 20, 2007

#7

• Jul 20, 2007

• #7

cjones said:

what do you mean??

the engine is just an air pump. always was and always will be.

the formula is how much air can be pumped thru the engine in one minute.

Click to expand...

I mean, that I edited the post to include cam, intake, transmission, differential, and head specifications to the original post. I thought these details might help the discussion.

 

cjones

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Jul 20, 2002

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Avondale, AZ

Jul 20, 2007

#8

• Jul 20, 2007

• #8

NicksBullitt said:

I mean, that I edited the post to include cam, intake, transmission, differential, and head specifications to the original post. I thought these details might help the discussion.

Click to expand...

Oh, sorry. misunderstood.

 

NicksBullitt

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Holly Ridge, NC

Jul 20, 2007

#9

• Jul 20, 2007

• #9

cjones said:

Oh, sorry. misunderstood.

Click to expand...

No worries.