Re: [Classic Mustang] Re: Holley vs Edelbrock

Of course, you are assuming 100% VE and N/A.  Motors rarely reach 100% VE anything other than NA requires you to factor the additional airflow.

 

Want to really get it right...  A wideband O2 and several dyno pulls or 3rd gear pulls at the appropriate location.

 

Mahalo!!

 

Jim Ohrt

----- Original Message -----

From: Michael D. Myjak

To: classicmustang@yahoogroups.com

Sent: Thursday, May 21, 2009 9:11 AM

Subject: Re: [Classic Mustang] Re: Holley vs Edelbrock

One of the most common mistakes in an engine rebuild continues to be
over doing it with the carburetor. Again... the formula:

(Disp./2 * RPM)
-----------------
1728

Using 5,500 RPM (for street use) and 408 Cu..In. the result is 649.31
CFM carb.

-Michael

Paul Stephens wrote:
> --- In classicmustang@yahoogroups.com, Dan O'Reilly <dano@...> wrote:
>
>> 730-750 strikes me as over-carbureted for a 351, isn't it? The
>> recommendations I've been hearing are in the 600cfm range.
>>
>
> Dan,
> I was talking about a 408 W stroker. Normally a 351W is OK with 600 - 700 CFM on the street but when you add the extra cubic inches you need a bit more carb to feed it.
> Paul
>
>
>

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