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351 with twin 425's 


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 Post subject: 351 with twin 425's
Posted: Sat Sep 23, 2017 7:08 pm 
Oompa Loompa

Age: 52

Posts: 32

Joined: 16th Sep 2009

Ride: Ford maverick 351

Location: Katherine
NT, Australia

Hi all,

I have been playing around with the gas setup on my 351c. Changing from single to twin 425's. My current setup is still using a single converter (B2) to feed both 425's.

There is a lot of talk about using dedicated converter/mixer combos. By adding a second converter would i expect to see a significant difference.

And what is the max HP i can expect from 6mm supply line.

 Post subject: Re: 351 with twin 425's
Posted: Tue Dec 12, 2017 9:32 am 
Tyre Shredder
User avatar

Age: 32

Posts: 325

Joined: 15th Apr 2006

Ride: F350, EF2 Ghia, XC & Corty

Power: 218 rwkw

Location: Wangaratta
VIC, Australia

A single B2 is good for up to about 300hp.
6mm line may be alright up to 200hp, but my old Crossflow never liked the 6mm line.
Replace it with an 8mm line minimum or a 3/8 flex line.




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