Has anyone installed a Edelbrock 1405 on a 1964 1/2 289 4V engine ? Any pics would be great.One question that I have is that the mustang now has a 1 inch spacer plate where the PCV valve connects and the Edelbrock has a connection on the front of the carb for the PCV connection. Should the PCV connection on the carb be plugged ?
The Eddy 1405 is a Spread-Bore Carb and requires a Spacer that allows the Secondaries to fully open. I use to run one on a 65 289 4V Motor and took me forever to figure out why it didn't run right. The Secondaries were not opening, they were hitting the Intake Manifold, because I did not have the correct Spacer. If I remember correctly, The Spacer does not have the Port, which should eliminate your problem. IMHO .
Madmustangs is incorrect. The 1405 is a square bore carb not a spread bore,even though the secondary butterflys are slightly bigger than primarys. Spread bores are like you Q-jet carbs, which require an adaptor plate if running a square bore intake. As far as your spacer you have, you can plug the PCV port on it and run the one on your Carb in front. The one in the back is for power booster
+1 for all that's been stated. I still have my 1405 I used on my D code block. They run and work well with a 1/2" phenolic spacer and tuned with a vac gauge. I think I purchased it from Jegs.
64 1/2 Poppy Red too!, Cvt. Resto-Mod
333 Cu.in. T5z, 3:55, Dual 40 mm DCOE Webers
Performer RPM, CI cam, TFS/TWs, Tri-Ys, Discs w/Shelby Drums
Severna Park, MD
Have a 500cfm Edelbrock, and vac advance to front of carb. PCV into back of carb, Power brake and trans modulator to a block on the intake, at the rear. Have a 1/4" phenolic on a Weiand dual port intake.
I have one on my 66 with an RMP manifold. The carb was just a little rich from the factory according to my wideband O2. I moved the jets and rods one step down leaner and used the orange spring and it runs strong and 16 MPG.
I'm running a 1406 on a stock intake. I'm also using the factory spacer with the PCV. I used plug in the Edelbrock PVC location. I had to richen mine 1.5% but you should be fine with stock jetting since the 1406 is an emission style carb that's jetted leaner. I also cut the end off the stock carb linkage, threaded it with 10/32 threads and installed a rod end I got at Grainger
Thanks for posting this, glad it is running fine for you. I have 351C in my 70 Mach and plan to put an Edelbrock Performer intake with the 1406 (electric choke version of the 1405). Will I have to run a spacer plate for this carb? I believe this is a pic of the manifiold I plan to use...
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