Re: [Amc-list] Weber Carbs for the 258

[Wayne E LaMothe <superglider@xxxxxxxx>]

If you want to keep it simple, go to Turner 4WD and buy a NEW Carter. 
Someone has retooled for the Carter and it is the non stepper version.  I
have one on my Eagle and it worked great right out of the box.  I also
run an HEI so there was no worry about having to bypass the computer
control of the stock dizzy.  I had a Weber on it but did not like all the
airflow noise with the tiny air cleaner.  I live on top of a mountain so
it got too annoying listening to it.  Everybody that has chimed in about
the stock cam is right on.  That is the limiting factor when it comes to
carb choice.  I have run the motorcraft conversion, the Weber, the Holly
390 and sad to say, the Eagle runs best with the Carter.  It was designed
for it and each of the other carbs offered  a little more higher end
power but at a loss of low end torque. 

Just my thoughts, YMMV

Wayne

Wayne & Lisa (Skeezix), Bolton Landing, NY,
http://www.superglider.thinkhost.com/
AMO#8454, 83 Eagle Limited Wagon, 82 SX/4, 258 auto
69 Ambo coupe, 401, M12, 66 Ambo 990 Wagon, 327,PW,PB,PS,posi,AM/FM,AC
2003 FLHTCI
2001 Cherokee, 2000 Chrysler Cirrus (both hers)
 
On Wed, 07 May 2008 08:47:06 -0400 Frank Swygert <farna@xxxxxxx> writes:
> Definitely NOT "too much carb"!! They were probably talking about the 
> much more common and comparatively cheap (about half the price new 
> or used!) 600 cfm Holley. The only people who have successfully run 
> a 600 cfm vacuum secondary carb are racers (usually mud or sand 
> racers) who run the engine in the higher rpm range a lot. 500 cfm is 
> considered the max for a 258. 
> 
> I'm running a 390 it the 258 could definitely use a little MORE 
> carb. The big killer I believe is the very conservative stock cam 
> though. After my experience with this Holley 390 (vacuum secondary, 
> but blocked to force coming in at about 1/3 throttle opening) and 
> Clifford intake I'd start with a 450 cfm carb. The only used ones I 
> found were made for a choke coil in the intake on V-8s though, and I 
> didn't want a manual choke. No electric or carb mounted conversion 
> for those carbs, so the only option would have been manual. I know 
> how to use a manual choke, just prefer electric. If I had to do it 
> over a gain, however, I'd just use a manual choke. 
> 
> ----------
> Date: Tue, 06 May 2008 22:28:57 -0500
> From: Todd Tomason <jayscore@xxxxxxxxxxxxx>
> 
> I've never used the Clifford intake with the 390 Holley, but I've 
> been told by 
> several people that it's too much carb for this engine.  
> 
> 
> -- 
> Frank Swygert
> Publisher, "American Motors Cars" 
> Magazine (AMC)
> For all AMC enthusiasts
> http://farna.home.att.net/AMC.html
> (free download available!)
> 
> _______________________________________________
> Amc-list mailing list
> Amc-list@xxxxxxxxxxxx
> http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list
> 
> 
 
_______________________________________________
Amc-list mailing list
Amc-list@xxxxxxxxxxxx
http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list