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Street Demon or Holley S.A. ?? #1565254 01/18/14 11:06 PM 01/18/14 11:06 PM
Joined: Jan 2003 Posts: 5,317 Land 'O Lakes RoadRunnerLuva OP master
RoadRunnerLuva OP master Joined: Jan 2003 Posts: 5,317 Land 'O Lakes	I am wanting to change out the carb on my mildly built 360 Duster. Right now I use a 600cfm Edelbrock #1406....I want to upgrade to something better! The engine is mostly stock: dual plane Weiand intake,1 5/8 headers with 2 1/2" dual exhaust,Firecore electronic ignition,hydraulic "340" cam/valvetrain,904 auto transmission that is all stock except for deep pan and shift kit. I am thinking of either the Street Demon 625 cfm "phenolic plastic" carb...or the Holley Street Avenger 670 cfm carb..I would be using electric choke with either one. Anyone have any experience with either of these two carburetors, or advise to give? Thanks!

Re: Street Demon or Holley S.A. ?? [Re: RoadRunnerLuva] #1565255 01/18/14 11:16 PM 01/18/14 11:16 PM
Joined: Feb 2003 Posts: 2,138 tucson az F frank top fuel
frank top fuel F Joined: Feb 2003 Posts: 2,138 tucson az	I have the 670 SA on my Charger with 383. Engine has E heads, MP duel plane manifold, stock HP cam and electronic ignition. Once adjusted properly no problems at all. Been on about 6 or 7 years Had to go down 2 jet sizes I think, adjust fuel pump rod and squitter's and a different secondary spring.

Re: Street Demon or Holley S.A. ?? [Re: frank] #1565256 01/18/14 11:31 PM 01/18/14 11:31 PM
Joined: Jan 2003 Posts: 5,317 Land 'O Lakes RoadRunnerLuva OP master
RoadRunnerLuva OP master Joined: Jan 2003 Posts: 5,317 Land 'O Lakes	Frank...how good is throttle response in your Charger with that Holley 670? Thanks for your response btw. Plymouth Makes It!

Re: Street Demon or Holley S.A. ?? [Re: RoadRunnerLuva] #1565257 01/19/14 12:26 AM 01/19/14 12:26 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	There just was a recent thread on this & I forget which one was by far touted as the one to get. If no one chimes in on that you might see if you can retrieve that thread. live every 24 hour block of time like it's your last day on earth

Re: Street Demon or Holley S.A. ?? [Re: RoadRunnerLuva] #1565258 01/19/14 01:18 AM 01/19/14 01:18 AM
Joined: Jan 2003 Posts: 12,076 Benton, IL. D DaveRS23 Special needs idiot
DaveRS23 Special needs idiot D Joined: Jan 2003 Posts: 12,076 Benton, IL.	The Street Demon looks to me to be the carb of choice right now. Lots of good reviews out there. I am going to change the Holley on the Barracuda out for one shortly. I think the best price right now is Advance Auto Parts. Internet orders get 15% off (limited to $50), free freight, and a $25 gift card. Gets the 1901 down to about $325. That is with electric choke. Master, again and still

Re: Street Demon or Holley S.A. ?? [Re: RapidRobert] #1565259 01/19/14 01:20 AM 01/19/14 01:20 AM
Joined: Jan 2003 Posts: 1,255 Columbus, GA Michael Ecks pro stock
Michael Ecks pro stock Joined: Jan 2003 Posts: 1,255 Columbus, GA	Quote: There just was a recent thread on this & I forget which one was by far touted as the one to get. If no one chimes in on that you might see if you can retrieve that thread. probably talking about this thread? Moparts Link I think I posted in that thread with my good experience with a 670 SA on my 360 with a Weiand Stealth. Hardly touched it since. Some apparently come from the factory with a bog problem that I've heard can be fixed with a few washers under the spring/screw that contacts the accelerator pump lever. As for some of the comments in the other thread, I didn't want to get into it there...But look closely at the dyno chart supposedly showing the SA as the worst performer. The legend in the bottom left shows the low performing line as "360MANIF" the next line as "SHORTYHD" and the last visible ending in "____HD" I guess if someone was comparing a SA on an engine with manifolds against another carb on the engine with headers it would make the SA look pretty bad... Bet most people didn't catch that. I like mine, and will be looking for a 750 soon. Demons look weird on stockish cars. Only other thing I would look at is the Quickfuel Hot Rod series. "The happiness of your life depends upon the quality of your thoughts" ~ Roman Emperor Marcus Aurelius

Re: Street Demon or Holley S.A. ?? [Re: Michael Ecks] #1565260 01/19/14 03:21 AM 01/19/14 03:21 AM
Joined: Jan 2003 Posts: 5,317 Land 'O Lakes RoadRunnerLuva OP master
RoadRunnerLuva OP master Joined: Jan 2003 Posts: 5,317 Land 'O Lakes	Thanks guys for all the comments/advise so far. At the moment I am leaning towards the 625 Demon...I like the fact it is available with the phenolic center body(cooler fuel temps), and the bigger "goggle eyes" secondaries in the back. Any more info anyone can give me on the Street Demon? Plymouth Makes It!

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