Intake question - Team Camaro Tech
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post #1 of 11 (permalink) Old Apr 18th, 15, 02:51 PM Thread Starter
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Tony
 
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Intake question

Stock 1969 350/300 engine with headers, 2.5 exhaust, 3.42 gears, summit 1103 (.442 ex .465 int), pertronix 2 and flame thrower

Carb will be Speed demon 650 elec choke and vac sec.

Would a RPM, EPS or Air gap work well with this combo?

1969 Camaro SS350, original motor/12 bolt/interior and build sheet in Fathom Green.
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post #2 of 11 (permalink) Old Apr 18th, 15, 03:13 PM
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Re: Intake question

I would go with the EPS imho.

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post #3 of 11 (permalink) Old Apr 18th, 15, 06:59 PM
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Re: Intake question

Is your speed demon carb a spreadbore (625) or squarebore ?

I would think the performer or performer rpm would be best. The RPM would be better if you plan on upgrading the engine in the future.

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post #4 of 11 (permalink) Old Apr 18th, 15, 08:27 PM Thread Starter
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Re: Intake question

I don't have the carb yet but planning on square bore. I was thinking performer rpm too. With talk about eps unit I was wondering about that too.

1969 Camaro SS350, original motor/12 bolt/interior and build sheet in Fathom Green.
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post #5 of 11 (permalink) Old Apr 19th, 15, 08:08 AM
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Re: Intake question

Performer RPM gets my vote.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
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post #6 of 11 (permalink) Old Apr 19th, 15, 08:15 AM
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Re: Intake question

Performer probably OK as it sits. With a bigger/better cam, Performer RPM.

68 Camaro SS 396 - 468 BBC now, M21, 12 bolt 3.73 coded housing but w/ 3.31 gears.
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post #7 of 11 (permalink) Old Apr 19th, 15, 09:13 AM Thread Starter
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Re: Intake question

I plan to do a cam but it might be a while.

What are the effects of doing the RPM with my current cam? Will it still run ok?

1969 Camaro SS350, original motor/12 bolt/interior and build sheet in Fathom Green.
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post #8 of 11 (permalink) Old Apr 19th, 15, 10:10 AM
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Re: Intake question

Quote:
Originally Posted by TClovis View Post
I plan to do a cam but it might be a while.

What are the effects of doing the RPM with my current cam? Will it still run ok?
You will be fine. If I remember correctly the Performer RPM advertises 1500 to 6500 RPMs, the Performer advertises idle to 5500 RPMs. With a cam change in the future, the RPM is the way to go. IMHO even if you didn't change cams I would still go for the Performer RPM. Keep in mind advertised #'s do not always represent real world results.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
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post #9 of 11 (permalink) Old Apr 19th, 15, 10:48 AM Thread Starter
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Re: Intake question

Thanks. The 1103 sounds ok and if I change it down the road it will be for a roller set up. For now I'm content with the 1103. So it's good to know the rpm will work with the current cam.

1969 Camaro SS350, original motor/12 bolt/interior and build sheet in Fathom Green.
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post #10 of 11 (permalink) Old Apr 19th, 15, 01:58 PM
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Re: Intake question

Here is some interesting manifold comparisons.
http://www.hotrod.com/how-to/engine/...d-comparisons/

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post #11 of 11 (permalink) Old Apr 20th, 15, 06:06 PM Thread Starter
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Re: Intake question

The RPM did pretty well I guess, especially for the cost. I went ahead and bought the performer rpm and demon 650 so I hope it's a good combo for what I have.

1969 Camaro SS350, original motor/12 bolt/interior and build sheet in Fathom Green.
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