TheAMCForum.com Homepage
Forum Home Forum Home > The Lounge Area > Member Projects
  New Posts New Posts RSS Feed - Doug's 70 AMX Build
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Click for TheAMCForum Rules / Click for PDF version of Forum Rules
Your donations help keep this valuable resource free and growing. Thank you.

Doug's 70 AMX Build

 Post Reply Post Reply Page  <1 56789 17>
Author
Message
DoughertyAMX View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar

Joined: Sep/20/2016
Location: Washington, Ind
Status: Offline
Points: 519
Post Options Post Options   Thanks (0) Thanks(0)   Quote DoughertyAMX Quote  Post ReplyReply Direct Link To This Post Posted: Oct/23/2017 at 5:56pm
Interesting on the 4300s. I actually don't have a carb yet that's why contemplating how to go. Have the stock steel intake and an R4B.
Back to Top
scott View Drop Down
AMC Addicted
AMC Addicted


Joined: Jul/10/2007
Location: Wildwood Pa.
Status: Offline
Points: 3498
Post Options Post Options   Thanks (0) Thanks(0)   Quote scott Quote  Post ReplyReply Direct Link To This Post Posted: Oct/24/2017 at 3:36pm
If you don't have a 4300 carb I see no problem going with one of the aftermarket offerings, especially if the engine is not going to be stock. I don't have any opinions on an aftermarket carb, I haven't found a Holley or Edelbrock that agreed with me. If you did have a 4300, I would say it is well worth the price of a kit to rebuild it & see how you like it.
Back to Top
DoughertyAMX View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar

Joined: Sep/20/2016
Location: Washington, Ind
Status: Offline
Points: 519
Post Options Post Options   Thanks (0) Thanks(0)   Quote DoughertyAMX Quote  Post ReplyReply Direct Link To This Post Posted: Oct/28/2017 at 6:17pm
Thought I'd post a few more pics I took this week to show the progress............or lack of progress lol


Back to Top
DoughertyAMX View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar

Joined: Sep/20/2016
Location: Washington, Ind
Status: Offline
Points: 519
Post Options Post Options   Thanks (0) Thanks(0)   Quote DoughertyAMX Quote  Post ReplyReply Direct Link To This Post Posted: Oct/28/2017 at 6:27pm
Short block together.  Just about time to make some decisions on intake and carb.  Think I like the R4B and would leave it aluminum cast color, but the Ram Air fit issue scares me.............

Still torn between 4300 Motorcraft as they came, or a Quick Fuel 670 vac sec/elec choke.........don't have either one but need to decide soon.

Leaning towards free flow exhaust manifolds, if I can find a good set.

Decisions decisions
Back to Top
DoughertyAMX View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar

Joined: Sep/20/2016
Location: Washington, Ind
Status: Offline
Points: 519
Post Options Post Options   Thanks (0) Thanks(0)   Quote DoughertyAMX Quote  Post ReplyReply Direct Link To This Post Posted: Oct/28/2017 at 6:29pm
Back to Top
DoughertyAMX View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar

Joined: Sep/20/2016
Location: Washington, Ind
Status: Offline
Points: 519
Post Options Post Options   Thanks (0) Thanks(0)   Quote DoughertyAMX Quote  Post ReplyReply Direct Link To This Post Posted: Oct/28/2017 at 6:30pm
Sent my water pump off to waterpumpman.................hoping to get it back soon Thumbs Up
Back to Top
amcglass View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Dec/11/2011
Location: NW Ohio
Status: Offline
Points: 2588
Post Options Post Options   Thanks (0) Thanks(0)   Quote amcglass Quote  Post ReplyReply Direct Link To This Post Posted: Oct/29/2017 at 8:34am
keep the updates coming
Javmanpres

BBG Mark Donohue 401

74 Jav/AMX
71 Matador 2dr sedan delivery wagon
1902 Rambler Runabout   
70 T/A Javelin
Back to Top
Ram Air Rick View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar

Joined: Jul/04/2007
Location: United States
Status: Offline
Points: 2667
Post Options Post Options   Thanks (1) Thanks(1)   Quote Ram Air Rick Quote  Post ReplyReply Direct Link To This Post Posted: Oct/29/2017 at 6:59pm
Originally posted by DoughertyAMX DoughertyAMX wrote:

Short block together.  Just about time to make some decisions on intake and carb.  Think I like the R4B and would leave it aluminum cast color, but the Ram Air fit issue scares me.............

Still torn between 4300 Motorcraft as they came, or a Quick Fuel 670 vac sec/elec choke.........don't have either one but need to decide soon.
Leaning towards free flow exhaust manifolds, if I can find a good set.

Decisions decisions

I'm a believer in the Autolite 4300's. Many don't think they're good carbs, but my experience is different, and I've had good luck with them. My experience is with the stock intake manifolds though.

With your current intake selection, I think I'd consider an aftermarket carb..

I noticed new free flow exhaust manifolds for sale on ebay.

Good luck...

Rich C.
Back to Top
DoughertyAMX View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar

Joined: Sep/20/2016
Location: Washington, Ind
Status: Offline
Points: 519
Post Options Post Options   Thanks (0) Thanks(0)   Quote DoughertyAMX Quote  Post ReplyReply Direct Link To This Post Posted: Nov/17/2017 at 4:52am
Does anyone have the height spec on the Autolite 4300, mounting surface to air horn (ac mounting) vs a Holley 4150 series?  You know where I'm going............the ram air concern using an R4B.  I have read and read and read differing opinions on whether an R4B will work with a 70 Ram Air Hood.  I am leaning towards taking a shot at using the R4B, no spacer, and a 670 Quick Fuel, then cut down the ram air seal.  Many say that works fine, others say they still hit............

Just hate to put that 53 pound intake slug on such a nice motor. I know the 532c intake is a nice flowing intake for a cast/stock intake, just heavy.  Heck, I'm not even sure my engine stand will hold the motor up if I install it!

An R4B still makes it 1970 correct even if using a non Autolite carb makes it non correct.

My other concern with using the R4B is the heat riser tube coming off the ac housing.  Assume most who use the R4B and Ram Air just remove it?  Not needed if you run electric choke anyway.

Pretty much decided NOT to use a 4300 carb, now just trying to decide on the intake to use.  The cast stock intake and go away with no worries about hood clearance, or make the R4B work.
Back to Top
Ram Air Rick View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar

Joined: Jul/04/2007
Location: United States
Status: Offline
Points: 2667
Post Options Post Options   Thanks (0) Thanks(0)   Quote Ram Air Rick Quote  Post ReplyReply Direct Link To This Post Posted: Nov/17/2017 at 6:44am

"Does anyone have the height spec on the Autolite 4300, mounting surface to air horn....."

Don't forget, since it looks like you'll be using this dimension, to gauge the height differences, and how that would compare to the stock configuration for hood clearance, add the 4300 spacer height as well.

Rich C.
Back to Top
 Post Reply Post Reply Page  <1 56789 17>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.141 seconds.
All content of this site Copyright © 2018 TheAMCForum unless otherwise noted, all rights reserved.
PROBLEMS LOGGING IN or REGISTERING:
If you have problems logging in or registering, then please contact a Moderator or