1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

How many CFMS does a 6 port 13B need?

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Old Aug 4, 2004 | 05:55 PM
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From: Oshawa
How many CFMS does a 6 port 13B need?

I was thinking of changing my EFI (which isn't working) to a carb. I have a stock Nikki which was just rebuilt a year ago when I had my 12A. Is this carb any good for my intended use? Has anyone done this? Is there another acceptable carb? I dont have much money to spring on this...
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Old Aug 4, 2004 | 06:00 PM
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From: Oshawa
Is there a way to increase flow (i was thinking of Carl and Serling) enough to make it work for the 13B?
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Old Aug 4, 2004 | 06:42 PM
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From: https://www2.mazda.com/en/100th/
is there a 6 port 13b intake for a nikki?
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Old Aug 4, 2004 | 07:03 PM
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2bbl sidedraft is a faster and better solution. Dellorto 48 DHLA or Weber 48 DCOE. Racing Beat sells the upper manifold.
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Old Aug 4, 2004 | 09:49 PM
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j9fd3s, My friend had one on his GSL-SE engine in his REPU. It looked like someone had welded a couple stock manifolds together. I'm not sure how it flowed. Perhaps I could get it from him some time?
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Old Aug 5, 2004 | 12:14 AM
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From: Oshawa
i found another solution...seems my dad has a 625 cfm carter carb in the garage he was going to sell. with a custom manifold (im working on it ) should work nicely. According to RB a 6 port with a holley 600 cfm will make 180hp. id be pretty happy with that! Plus my other mods? how many hp do you guys expect? i was thinking it could be in the neighnorhood of 200hp-220hp. what do you guys think?
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