Edelbrock Intake 7121 or 2121? + cam and carb?

beanplant

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Jun 25, 2002

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KC MO

May 12, 2004

#1

• May 12, 2004

• #1

Alright, I've decided, I won't be able to afford to put the Edelbrock heads on until next year. My question is about the Edelbrok Power Packages...

I'm just going to have these stock E7s ported. I want to eventually go with the Edelbrock Performer RPM package with the:
7121 Intake
7122 Cam
1407 Carb 700 CFM
6225 heads

BUT, I can't afford the heads now. The other package consists of intake 2121, and cam 2122. If I were to use my stock ported heads... which intake should I go with? Which cam (if any) and should I go with the 600CFM carb, or the 700CFM carb with these heads?

Thanks!
Shaun

 

allcarfan

The Answer Man

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Apr 8, 2001

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May 12, 2004

#2

• May 12, 2004

• #2

FYI: I have the 2121 intake I PM's you about, along with a matching powdercoated 0 miles since rebuild edelbrock 600cfm carb.


If you are going to go with stock E7s...I say..2121 and the 600cfm carb.

If you want an RPM package...id buy the intake now, but i would buy a 600cfm carb. The 700 is going to be too big for you right now. I wouldnt worry about a cam right now. Id replace it when you swap your heads or rebuild your engine.

Shane

 

NorCal66

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Aug 12, 2003

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Virginia Tech, Blacksburg, VA HOME

May 12, 2004

#3

• May 12, 2004

• #3

A 700 will be too big for stock heads, you can always jet/tune a 600 for more power if needed. With the heads the 700 would be good.

I'm not too sure what the part numbers are and am feeling kind of lazy to look em up, but I'm going to assume it's the RPM or RPM Air-Gap, in which case I'd say go with the Air-Gap. Little bit more money, but they'll give you better flow, or so the magazine tests, etc, say.

I did the cam before the heads, and even with heavily ported stockers (they are 68s and not E7s though), they don't flow enough for that cam. I have a very small powerband right now...once it gets in it it will pull hard, but not for long as the heads stop flowing. If I had to redo it, I'd wait on the cam and put it in when I did the heads.

 

beanplant

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Jun 25, 2002

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KC MO

May 12, 2004

#4

• May 12, 2004

• #4

Is the performer package worth it? It uses the 2121 intake, and the 2122 cam with no heads (im assuming stock), and it pulls 290 Tq... Is this very much at all? About how fast would something like that run in the quarter?

-Shaun

 

NorCal66

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Aug 12, 2003

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Virginia Tech, Blacksburg, VA HOME

May 12, 2004

#5

• May 12, 2004

• #5

The performer package produces a less powerful, lower RPM curve than the performer RPM. Better low end torque off idle, but for street/race I'd definately recommend Performer RPM out of the Edelbrock packages...the performer just won't give you the top end you'll want in the 1/4.

 

beanplant

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KC MO

May 13, 2004

#6

• May 13, 2004

• #6

What I'm asking is, should I get the RPM intake and cam now, with the 600CFM carb? Or should I wait, and do it all at once?

-Shaun

 

allcarfan

The Answer Man

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Apr 8, 2001

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May 13, 2004

#7

• May 13, 2004

• #7

Thats a sheer judgment call on your part. Best to know exactly what you want to do so you dont have to buy parts, only to have to turn around and resell them to change your setup.

If you wanna do it all now.....

PM ME

 

beanplant

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Jun 25, 2002

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KC MO

May 13, 2004

#8

• May 13, 2004

• #8

I think I'm going to go with the 7121 intake.... it's only a $10 difference, and It's what I'll be going with eventually (when I get money). Thanks for all your help guys!

-Shaun

 

allcarfan

The Answer Man

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Apr 8, 2001

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May 14, 2004

#9

• May 14, 2004

• #9

Bean,

I have a 7121 intake sitting in the garage, along with a 600cfm carb...lemme know dude.