Need the carb guy's
I have 850 demon carb. It's one of the older ones. 2002? 2003? Not sure if it's a mighty demon or a street demon. Bought it off Summits bargain shelf back in 03'. Someone bought it, didn't like it, brought it back I imagine. So I was willing to throw down $100 on it. What the hell. LOL So that's how long I've had this thing. Sat in my shop for 10 years before I bolted it on, then ran it off and on for the past 5 years, knowing that it wasn't correct for the motor I had in the car, but it helped with hood fabrication ect. Researched how to ID these things, and there's an 8 stamped on the air horn. That's why I say it's a 850.
Now that I have a motor underneath it, it's time to clean it up and dial it in better.
I have a 10:1 427 BB with hyd. roller cam and big valves with a tunnel ram. ( Easy, I'm old school, and don't care.) LOL It's a double pumper manual secondaries, no choke.
I tore it down today and realized it has a 50cc accelerator pump on the primary side with 85 jets. The secondaries have a 30cc pump with 93 jets.
That just seems odd to me.
Maybe it's something normal. I'm not a carb expert, but.... It don't look right to me.
Any thoughts on why it would have jetting like this?
And yes, I am changing the power valve to a lower vacuum unit after reading my idla vac. in gear with a load. In gear its 8" vac. So I went with a 3.5 power valve.
So, hopefully, for me, somebody has some insight on these demons and has played with them.
67 RS 327, 4-speed, posi, done.
67 Modified, 454, TH-400, posi, under construction.
67 SS 396, 4-speed, basket case.
72 RS, sitting, partially done.
55 210 post, 2 door, 327 4-speed runs good.
55 2 door post, gasser project
69 Cadillac ElDorado
69 4x4 suburban
Some mornings, it's just not worth chewing thru the leather straps"