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Author Topic:   carb question
canuck/stang
Journeyman

Posts: 11
From: Niagara Falls,canada
Registered: Dec 2003

posted 12-16-2003 10:52 PM     Click Here to See the Profile for canuck/stang   Click Here to Email canuck/stang     Edit/Delete Message   Reply w/Quote
Looking for input on which carb is better,the demon or edelbrock? (for my 67 289 mustang with ford racing cam)
Any major problems with either?
thanks

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indyphil
Gearhead

Posts: 2354
From: Senoia, G.A. USA
Registered: Jul 2002

posted 12-17-2003 08:07 AM     Click Here to See the Profile for indyphil   Click Here to Email indyphil     Edit/Delete Message   Reply w/Quote
You didnt specify which CFM you are looking at, or whether you want an electric choke etc...

But regardless we have thrashed out this brand argument a lot on here.

Holley seems to have the vote for best performance and tunability.

Edelbrock (and Carter from which they are based) Are a bolt on and go carb, they are very reliable but simply not as good for outright performance. I have an edelbrock because it was available at the time, it also has no power valves to blow and childs play to change rods and jets to tune it. It works, never leaks, I like it.

Demon, copy of Holleys design. Some say an "upgrade" others say its no better or even worse. hard for me to tell but many complaints have been aired about tech support. The older experience racers didnt "switch" from holley to demon so that may tell you that they are no better.

My edelbrock is a 600CFM with vacuum secondaries and electric choke. Its about the right size for me and leaves me with a little growing room. 289/302 motors that get strong and need more carb go to a 650 holley.

------------------
'68 coupe 289 C code
66 heads, edel 600cfm carb, performer intake, dual exhaust http://www.geocities.com/ottouk_77/68mustang.htm

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canuck/stang
Journeyman

Posts: 11
From: Niagara Falls,canada
Registered: Dec 2003

posted 12-17-2003 11:33 AM     Click Here to See the Profile for canuck/stang   Click Here to Email canuck/stang     Edit/Delete Message   Reply w/Quote
What kind of vacuum reading are you getting with your combo?I was thinking of putting on a 500cfm edelbrock.My cam #s are in the area of 214 duration 472"/496" lift

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Moneymaker
Administrator

Posts: 25539
From: Lyons, IL, USA
Registered: May 99

posted 12-17-2003 12:15 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Welcome to M&M Mr. Cunuck !
If you plan on just driving the car then the Edelbrock is a better and simple choice.
If you want teh maximum performance, then you can't beat a Holley.

------------------
Alex Denysenko
Co-Administrator and Moderator

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indyphil
Gearhead

Posts: 2354
From: Senoia, G.A. USA
Registered: Jul 2002

posted 12-17-2003 12:44 PM     Click Here to See the Profile for indyphil   Click Here to Email indyphil     Edit/Delete Message   Reply w/Quote
im sure the 500 will "work" but if you plan on upgrading things in future (headers, intake, cylinder heads) then 600 would be good. There are calculators out there that take displacement and RPM and estimate CFM, and most of them say a healthy 289/302 need between 500 and 600CFM depending on how many mods you have. I went with 600 on a basically stock engine and the secondaries took a little too long to open, but I have growing room for the future

------------------
'68 coupe 289 C code
66 heads, edel 600cfm carb, performer intake, dual exhaust http://www.geocities.com/ottouk_77/68mustang.htm

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