manifold choice
Dr. Detroit
Joined: Mar 2012
Posts: 10,095
Likes: 4,025
From: New Braunfels Texas
Jebby, Titanie,
For what its worth, I believe Edelbrock has a soft carb spacer, maybe quarter inch thick, and is a two hole design. Meaning divided left / right just like the 7501 plenum is.
The spacer even has a divider down the middle.
Wouldn't that be better than a four hole spacer, which the Eddy 7501 is not a four hole? Cooler charge for the carb, not too high to clear the hood and being somewhat soft material will have a good seal. I suppose the spacers dividing wall cut be removed with a razor blade.
For what its worth, I believe Edelbrock has a soft carb spacer, maybe quarter inch thick, and is a two hole design. Meaning divided left / right just like the 7501 plenum is.
The spacer even has a divider down the middle.
Wouldn't that be better than a four hole spacer, which the Eddy 7501 is not a four hole? Cooler charge for the carb, not too high to clear the hood and being somewhat soft material will have a good seal. I suppose the spacers dividing wall cut be removed with a razor blade.
I recommend the four hole because, as an extension of the Venturi....it lengthens it and will pull on the booster a touch harder....same theory as a HVH Super Sucker.
You might make more peak power with an open spacer on an Air Gap...but the curve will suffer down low....
The standard RPM is even more touchy because the divider is not “cut out” like the Air Gap.....
Jebby
Last edited by Jebbysan; Aug 22, 2019 at 09:52 PM.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Sounds like a future episode of Frieburger, Dulcich and Brule Dyno Show.
Shoot-out: Carb Spacers; 4 hole vs 2 hole vs open style. On the next Motor Trends Engine Masters!!!!!!
Shoot-out: Carb Spacers; 4 hole vs 2 hole vs open style. On the next Motor Trends Engine Masters!!!!!!
