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What carb should I run? #1248681
06/10/12 07:28 PM 06/10/12 07:28 PM
Joined: Feb 2012
Posts: 199
NC
1
1970A66 Offline OP
member
1970A66  Offline OP
member
1

Joined: Feb 2012
Posts: 199
NC
Wondering if my current Holley 750 vacuum secondary carb is OK for my STREET car. Would something bigger or a DP make it run stronger?

70 Challenger, 3400 lbs, 4 speed, 3:55 rear, 340 stroked to 373. Engine dyno's at 420 hp.

10 to 1, cam: 231/237 @.050 w/525 lift, 10 inches vac at idle, Performer RPM intake ported to X heads, TTI headers to 2.5 pipes.

It runs good but I can't help wondering it it would like more air?

Re: What carb should I run? [Re: 1970A66] #1248682
06/10/12 09:17 PM 06/10/12 09:17 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
either should work fine. I fthe 750 vac is working just leave it.

[IMG]http://i66.tinypic.com/pui5j.jpg[/IMG]
Coming soon!!!!
Re: What carb should I run? [Re: Mr.Yuck] #1248683
06/10/12 11:34 PM 06/10/12 11:34 PM
Joined: Jul 2004
Posts: 4,732
Watertown, WI
MikeyT Offline
master
MikeyT  Offline
master

Joined: Jul 2004
Posts: 4,732
Watertown, WI
^ Mr yuck is right, if it runs well no need to change it, but if you like to, instead of getting a bigger carb, rent sometime on a chassis dyno and dial that 3310 series in on it! I picked up quite a bit just jetting and setting timing right.
Mike

1969 Dodge Dart Swinger
Re: What carb should I run? [Re: 1970A66] #1248684
06/12/12 05:35 PM 06/12/12 05:35 PM
Joined: Feb 2012
Posts: 199
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1970A66 Offline OP
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1970A66  Offline OP
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Joined: Feb 2012
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NC
Alright...thanks guy's for the replies, that helps!
Re: What carb should I run? [Re: 1970A66] #1248685
06/12/12 06:08 PM 06/12/12 06:08 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
The DP will get you off the line quicker... the 750
was stock on a 340 so I'm sure more carb will make
more power... but is it worth it to you... borrow
a bigger carb and try it

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