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#302151 12/01/15 06:22 AM
Joined: Oct 2012
Posts: 61
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Joined: Oct 2012
Posts: 61
Hi all,

Ok where to start....i'm looking for advice on a combination that someone is using that works with 2.56:1 diff gears.
My 69fb just doesnt move ike it should. No neck snapper off the line (2.56:1 see's to that) but from 50mph on , she flys. Perfect for our 110kph (about 65-70 mph speed limit)

I currently have a 400, TH350 and peg leg 10 bolt (2.56:1).The 400 has mild work done to it (big valve #16 heads, Comp XE268H 51-232-3 cam (old grind) and valve train, Edelbrock RPM, Hooker long brach headers 650dp Holley and HEI.
The tranny is a new stock TH350 with stock converter.

I realise i could change my diff ratio to work better with my cam but the 'long legs' really work for me. ( i travel about 70 miles on the hiway daily ).... ( no im not buying a Hyundai as the wife keeps begging me to do)

Should i change cams (would rather not) , buy a stall converter ( ??? stall speed) or search for a diff with maybe 3.08's

Id appreciate any advice and welcome input from anyone running a similar combination or doing big miles frequently.

Thanks in advance

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Entire Thread
Subject Posted By Posted
Final drive ratio BlueBird 12/01/15 10:22 AM
Re: Final drive ratio Michigan Larry 12/01/15 05:16 PM
Re: Final drive ratio rohrt 12/01/15 06:58 PM
Re: Final drive ratio BlueBird 12/02/15 12:59 PM
Re: Final drive ratio Dr. Drivability 12/02/15 05:24 PM
Re: Final drive ratio rohrt 12/02/15 07:09 PM
Re: Final drive ratio oldskool 12/02/15 10:06 PM
Re: Final drive ratio BlueBird 12/03/15 12:08 AM
Re: Final drive ratio oldskool 12/03/15 02:30 AM
Re: Final drive ratio rohrt 12/03/15 05:56 PM
Re: Final drive ratio oldskool 12/03/15 10:37 PM
Re: Final drive ratio bigchief 12/03/15 06:09 PM
Re: Final drive ratio oldskool 12/03/15 10:32 PM
Re: Final drive ratio wovenweb 12/04/15 05:07 AM
Re: Final drive ratio bigchief 12/04/15 07:33 AM
Re: Final drive ratio rohrt 12/04/15 07:01 PM
Re: Final drive ratio BlueBird 12/07/15 05:27 AM
Re: Final drive ratio BlueBird 12/13/15 12:31 AM
Re: Final drive ratio oldskool 12/13/15 04:22 AM
Re: Final drive ratio BlueBird 12/14/15 01:23 AM
Re: Final drive ratio BlueBird 12/14/15 01:48 AM
Re: Final drive ratio rohrt 12/14/15 10:12 PM
Re: Final drive ratio BlueBird 12/23/15 12:03 PM
Re: Final drive ratio rohrt 12/24/15 10:23 PM
Re: Final drive ratio Firebob 12/24/15 10:42 PM

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