I have a 650 double pumper that I bought used. I am trying to get an idea of what the stock jetting was. I looked on the Holley Website but couldn't find it. Also i want some suggestions on what jetting to try. I haven't ran the car yet, I hope to in a few weeks. We are in the process of doing body work so we can paint it. I think I am painting it Hugger Orange.
650 Holley Double pumper-the choke horn has been removed, and the top smoothed down a bit
83' Z 28- Hopeing to get it down to 2800-3000 lbs with me in it.
355
Trick Flow Twisted Wedge-2.02/1.60
9.7-9.8 Compression
268 Xtreme Cam
Roller tip Rockers
RPM performer intake
1' 5/8 Full length Headman Headers
Turbo 350 - Manuel Valve Body
1900-2200 Stall, basically no stall-(least it feels that way)Hope to get a 3000 soon
4.11 gears-
26' BFG Drag Radials
Thanks for all the help.

Im sure there is more then a couple 650 DPs but I have one that is one of their more popular ones and it comes with 67s in the front and 73s in the back, 28 squiters, and a 6.5 PV.

Get that thing to the track, I am curious as to what it will run.

There were several variations of the list 4777 650 DP. Since your choke horn is gone, you might find it stamped on the metering block(s). If you find something like 4777-1 or 4777-2 you can refer to this chart:

http://www.mortec.com/carbs.htm

I am trying to go to the track SOON! I am hoping to run some mid 12's. I am also going to put a 75 shot on it. With the 75 shot I am hoping to run High 11's.