Carbureted LSX forum - jet sizes

Hey guys was just wondering if any of you knew what the standard jets are in 650 dp at the moment i have 72 primaries and 76 secondaries the car does seem to be running rich and starts to hesitate when i floor it
thanks

stock 650 dp jetting is either 67 pri and 73 sec or 67 pri and 76 sec both have 6.5 power valve in the primary circuit. your hesitation is more than likely coming from improper accelerator pump adjustment. What is your combination. Maybe Me or someone on here can help you get it dialed in.
Beaudacious

Its a stock ls1 with a vic jr

U need a 50cc accel pump kit. Had to do it to mine b4 I went to a perf rpm

Id leave the secondary where they are at and always do your tuning on the primary to get it away from the traffic lights. Maybe start at 68 in the primary and do a plug check after a WOT test. 50cc pump will help as long as it is adjusted properly. I have a 5.3 bored to 5.7 in a 96 s10 and it has 650dp. carb setup:
69 pri
73 sec
4.5 hg powervalve in pri
none in sec
pink pump cam on 2nd screw hole front and 1st on rear
Edelbrock/MSD box curve 3 chip
crisp tune plugs greyish brown wicked throttle response
Beaudacious