When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Does anyone know what brand of carburetor was original in the 1971 Demon 340. I noticed that I have a 4 barrel Holley which I can bet is not original.......can not wait to see what else is missing,
FF
Last edited by 1969CoronetR/T; 09-16-2009 at 05:32 PM.
Reason: mispelled
Great, I have heard so many good things about the thermoquad. I ordered an Edelbrock and will look into a remanufactured (reconditioned?) Carter for numbers..
Thanks mr340,
FF
The Thermoquad is a spread bore. My Demon came with a Carter AVS. I dont know why, manuer tranny maybe?
By the way, I am not ignoring you, I just havent made it out to the farm to get photos of my Demon yet. It is A jig saw puzzle at the moment, all taken apart to get ready for paint.
I got an Edelbrock square bore as they do not make a spread bore and mine is a manual, also. Will a square bore make much difference, detrimental or beneficial? No problem on the photos, but all the Demons I see have hood scoops on them. Mine does not for some strange reason...
FF
The intakes are different, as are the bolt patterns. If you already have a Holley on there, a square bore carb will work just fine (unless it is a spread bore holley) A square bore has all 4 butterfly's the same size, a spread bore has two small butterflies and two large butterflies in the back. Most after market intake manifolds come with the ability to run either type of carb.
* I looked at my engine and intake, both are dated 1970, I guess my Demon was an early one and got a 70' engine set up with the AVS carb
The scoops were optional. my last Demon 340 had rear spoiler. hood pins, but no scoops from the factory.
I have a couple of extra hoods, one has the duel scoops, I might part with it, dont know what i am going to do yet, mine is awaiting paint, If I go with a glass hood, I will probubly sell the others.