Need help tuning Demon carb

Printable View

02-10-2007, 10:05 PM
4.3L260z

Need help tuning Demon carb

I have a Chevy 4.3L V6 with a 525 CFM Road Demon carb. I was getting a large
stumble off idle and at 3000-4000 RPM. I installed smaller squirters and it solved the off idle stumble but there is still a large flat spot from around 3000 to 4000 RPM. If anyone has any advice it would be greatly appreciated.
Thanks
02-11-2007, 01:16 AM
thesals

sounds like your secondaries are maybe opening too much too soon, try adjusting them to open a little less, should get ya there
02-11-2007, 09:04 AM
erik erikson

Quote:

Originally Posted by 4.3L260z

I have a Chevy 4.3L V6 with a 525 CFM Road Demon carb. I was getting a large
stumble off idle and at 3000-4000 RPM. I installed smaller squirters and it solved the off idle stumble but there is still a large flat spot from around 3000 to 4000 RPM. If anyone has any advice it would be greatly appreciated.
Thanks

The stumble off idle has to do with the acc. pump.
Try changing out the vac. sec. spring to a stiffer one.

All times are GMT -7. The time now is 10:39 AM.