Street Demon carb

[Wire]

anybody using a 1901 Street Demon Carb 625 CFM on a 340 motor. I have a dynode 340 motor making 375 horsepower with a 1805 Edelbrock Thunder Series 650CFM. I have a friend that built his 340 motor with the same parts I used except he used a 1901 Street Demon 625 CFM carb, and when he had his motor dynode at the same place as I did, his motor made an extra 15 horsepower and more torque.

 

[sireland67]

Not worth the money to change carbs.

FYI the 625 demon is one of the best carbs I have bought, starts easy at -20 degrees.
The one on my truck is one of the first production run, its been on there a long time.
All I had to do was adjust the idle screw in 1/8 a turn.

 

[stroked340]

Demon carbs are garbage...and that 625 is not much carb for that 340 i'd run atleast a 750,if your going to spend good money on a carb buy a good one..i prefer Quickfuels.

 

[nothingface5384]

Yes imho the Street Demon is the best new out the box carbs..otherwise its a Qjet built by qjetpower or everyday performance..elsewhere is junk

The edelbrock is just a mediocre carb..

 

[RustyRatRod]

You'll never feel 15 HP difference. Stop bench racin and have fun.

 

[AJ/FormS]

Were they dynoed on the same day, and in the same hour?