# Need Carb Help

**URL:** <https://forums.speedlife.net/t/need-carb-help/190170>\
**Category:** PittSpeed Automotive\
**Created:** [May 27, 2007, 8:01am UTC](https://forums.speedlife.net/t/need-carb-help/190170 "2007-05-27T08:01:43Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![85StangGT](https://avatars.discourse-cdn.com/v4/letter/8/278dde/32.png) [@85StangGT](https://forums.speedlife.net/u/85StangGT)\
**Post date:** [May 27, 2007, 8:01am UTC](https://forums.speedlife.net/t/need-carb-help/190170/1 "2007-05-27T08:01:43Z")

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so shortly i am going to buy a new carb for my 306 that is shown in the members projects section. and sometime in the near future i plan to run nitrous with my setup. now my question to you guys is would i have to get a carb thats got a larger cfm if i planned to run like a 100 shot or something around there… now im gonna get a carb thats bigger than stock obviously but add nitrous and would i go even further or stick with the same size??

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**Author:** ![imported\_gearhead](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_gearhead/32/5957_2.png) [@imported\_gearhead](https://forums.speedlife.net/u/imported_gearhead)\
**Post date:** [May 27, 2007, 3:36pm UTC](https://forums.speedlife.net/t/need-carb-help/190170/2 "2007-05-27T15:36:47Z")

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I dont know what mustang guys do, but building a nitrous motor isn’t quite as dependent on carb cfm size as it is other things. If you are not spraying a wet shot, then the carb choice would be more important.

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**Author:** ![85StangGT](https://avatars.discourse-cdn.com/v4/letter/8/278dde/32.png) [@85StangGT](https://forums.speedlife.net/u/85StangGT)\
**Post date:** [May 27, 2007, 3:54pm UTC](https://forums.speedlife.net/t/need-carb-help/190170/3 "2007-05-27T15:54:58Z")

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well the nitrous system i wanna gonna go with is a wet system. im pretty sure the engine will hold up since its just about new. as for a carb. i was thinkin of goin with a 670cfm Holley Street Avenger. Just wanted to see if anybody had any suggestions before i make this investment.

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**Author:** ![Shaggy](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/shaggy/32/5945_2.png) [@Shaggy](https://forums.speedlife.net/u/Shaggy)\
**Post date:** [May 27, 2007, 10:10pm UTC](https://forums.speedlife.net/t/need-carb-help/190170/4 "2007-05-27T22:10:59Z")

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That motor is crying for E.F.I 🙂

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**Author:** ![bgblockelcamino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bgblockelcamino/32/5997_2.png) [@bgblockelcamino](https://forums.speedlife.net/u/bgblockelcamino)\
**Post date:** [May 27, 2007, 10:34pm UTC](https://forums.speedlife.net/t/need-carb-help/190170/5 "2007-05-27T22:34:29Z")

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i have a 670 street avenger here for sale. if using a plate system you should be fine since you will be adding fuel with spray

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**Author:** ![85StangGT](https://avatars.discourse-cdn.com/v4/letter/8/278dde/32.png) [@85StangGT](https://forums.speedlife.net/u/85StangGT)\
**Post date:** [May 28, 2007, 9:32pm UTC](https://forums.speedlife.net/t/need-carb-help/190170/6 "2007-05-28T21:32:14Z")

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yeah the system uses th plate…how much you want for the carb. is it new/used??

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**Author:** ![vw16vcabby](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vw16vcabby/32/5943_2.png) [@vw16vcabby](https://forums.speedlife.net/u/vw16vcabby)\
**Post date:** [May 29, 2007, 9:39pm UTC](https://forums.speedlife.net/t/need-carb-help/190170/7 "2007-05-29T21:39:32Z")

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set the carb up for the engine all motor setup. tune your carb to match the engine. as w/ the wet kit, it will be adding fuel and n02 together and wont lean out your a/f setting of the carb on the motor.

if u can, even setup the nitrous fuel delivery on it’s own–i.e. 5 gallon tank, own fuel line/pump/regulator.

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**Author:** ![85StangGT](https://avatars.discourse-cdn.com/v4/letter/8/278dde/32.png) [@85StangGT](https://forums.speedlife.net/u/85StangGT)\
**Post date:** [June 1, 2007, 9:16pm UTC](https://forums.speedlife.net/t/need-carb-help/190170/8 "2007-06-01T21:16:35Z")

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> [@The Warehouse:wednesdays](https://forums.speedlife.net/t/the-warehouse-wednesdays/30371/22):
>
> set the carb up for the engine all motor setup. tune your carb to match the engine. as w/ the wet kit, it will be adding fuel and n02 together and wont lean out your a/f setting of the carb on the motor.
> 
> if u can, even setup the nitrous fuel delivery on it’s own–i.e. 5 gallon tank, own fuel line/pump/regulator.

Thanks ill keep that in mind
