Ron, with the mild cam that I'm running the 465 is ideal, the 600 was overkill. The 224 in yours should be able to handle the 600 easily but you'll have to call this one on your own, to bad you couldn't find a carb to borrow for some test runs. I've been with Holley for almost 50 years and very seldom have I ever had an issue.....maybe just lucky? Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

The cam limitation seems to be rather general. I think the Edelbrock that you got to work is for use with 220 @ 50 or less. The demons have been used successfully with bigger cams.



I like the 570.


Lawrenceville, GA

Gary - My concern is really around my cam.  It isnt stock, its 224 deg @.050, which seems to be on the edge of suitability for many carbs (i.e. demon app chart shows 220 is the limit for the Jr)  If it was the stock cam, it would be a less risky proposition on the carbs, thus my barrage of questions!  Its too bad you are so far north and that I cant meet you in sycamore!

Marv - Ive tuned the eddy with different springs & rods, and you are right, it helped a ton.  It is still sloppy, however, and gets poor mileage compared to the holley 390 (on the order of 10-12 mpg). 

I figure since i have a credit from Jegs, Ill probably try the 465, put on electric choke, and see how it goes.  I havent really heard anyone with a reason to go to the avenger 570 thus far, except for the guy at jegs.....

Ron Grove

Wauconda, IL

500 cfm is not sized out of line as the Autolite 1.08 is 480 cfm and the Holley is 465. Edelbrocks seem to be over rated as to sizing anyway. The eddy is very tunable, likely the problem with poor response is the springs need to be changed to lighter to match your engine vacuum and a richer metering rod. They run reasonably well out of the box but a tuning kit really makes a difference and does not require a mechanic to "optimize" it everyday.



marv

Ron, or you can get the manual choke kit, you should already have a choke hole in your dash. I think the 465 had everything to offer for the 57 312's and then some. Unless you're going bigger cam or strip application it should do fine. Its 348 miles to Sycamore, but it's all down hill, thats why I put in the front disc brakes. Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

Gary,

That makes sense, but I have one of the original mummert AL intakes, so no heat passage for the choke tube.  Id have to get the electric choke conversion kit for about $50 or so.  No big deal.

Talked to holley tech.  Soon as he heard 56 ford he said the 465.  He didnt really seem to care/want to hear about cam specs, rear end, etc....just automatically went to that carb.  Not sure if that means its the perfect fit, or that he just didnt want to deal with me!?!?!  Right now, Im inclined to try the 465, hoping it gets me the best of both worlds between the 390 throttle response and the 500 WOT power.  Like most, i have a hard time accepting that bigger isnt always better!

As for the sycamore show, we wont be there.  We are going to AZ for 2 weeks this sunday to visit parents, so.....

Where is St Germain, anyways?  We live about 20 miles south of the WI border, almost due south of lake geneva.  There are some good shows/cruise nights around here....let me know if you ever want to make the trip or want info about car shows, etc.  We have a GREAT car club in northern illinois - lots of activity, no dues, no politics, no elected officials.  Its pretty amazing actually.  About 240 members or so.....let me know if you want to meet up sometime!

**EDIT**  HOLY CRAP!  I just looked on google maps... you are WAAAYYY up there!  That is a long drive to sycamore!  Stay safe!

Ron Grove

Wauconda, IL

My 57 intake had a choke tube tap into the hot air crossover already when I got it, a small tube connects that to the choke housing on the carb, as the engine warms up the hot air slowly opens the choke. I'm a manual choke guy myself and I've never messed with the electric ones but this works very well and concidering that it's never driven in cold weather it's not much of an issue. Are you gonna be at the show in Sycamore next weekend, I'm driving down for it. Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

Also, i just noticed that the 465 is a hot air choke vs. electric.  Sorry for being ignorant, but how does that work?  What does it require to work?  Do I have to plumb it to anything or does it just sit there?  Pros/Cons vs. electric?

Ron Grove

Wauconda, IL

Yeah, I saw that and noticed the linkage.  Looks like its time to call Holley....

Gary, the carb was opening all the way on the 390...

The more I read the more it seems that the poor throttle response of the eddy might be more due to the 500 cfm (and weak/poor signal) than it being an eddy/carter style?

Ill post up what Holley has to say once i get a chance to call them.

Thanks!!!

Ron Grove

Wauconda, IL

Here is a link to the Holley site regarding the 0-1848-1 465 CFM carb.

http://www.holley.com/0-1848-1.asp

Click on the tech info for hooking up and adjustments . The drawing looks like a 57 Ford accelerator linkage.

Myself, Holleys are not my favorite carb.
marv