Need Help Jetting CPI Pipes with Play/Dune Ported Cylinders

[Infamous039]

I just got some cylinders with a Play/Dune Port from FAST Racing and some CPI pipes. I want to get the jetting as close as possible. I have the stock carbs for now, so please give me advice in jetting this setup for stock carbs.

 

My mods:

 

Stock Carbs-Tors Removed (280main and 25pilot) Needle Middle Clip

Vforce 2 reeds

+4 timing

CPI exhaust

Play/Dune Port stock bore

Modquad CoolHead 21cc domes

Hotrods crank (stock length)

Stock airbox/ open lid

Prodesign Filter setup

[98_shee]

I would say start about 330 main and 27.5 pilot.

[AustinTX]

I just got some cylinders with a Play/Dune Port from FAST Racing and some CPI pipes. I want to get the jetting as close as possible. I have the stock carbs for now, so please give me advice in jetting this setup for stock carbs.

 

My mods:

 

Stock Carbs-Tors Removed (280main and 25pilot) Needle Middle Clip

Vforce 2 reeds

+4 timing

CPI exhaust

Play/Dune Port stock bore

Modquad CoolHead 21cc domes

Hotrods crank (stock length)

Stock airbox/ open lid

Prodesign Filter setup

 

I would try 300 mains, probably a little rich, and 27.5 on the pilots.

[Infamous039]

OK, I will try both. The 280mains I have in my bike now are with NO porting on the cylinders at all. So I thought porting will make my jets much higher???

[98_shee]

You want to start rich and work your way down. I would start with the 330.

[Paddleboy]

just call up jeff and he will put u in the right spot

[Wildcardracing]

What's your elevation? We run @310-320 at 4500' with CPI's and dune port.

[FASTOYS]

Yes, please call me if you have any questions and I will get you lined out.

[Infamous039]

OK, I was able to score a set of 30MM OKO carbs that I will be using. I need advice jetting these babies for the same Mods I listed above???

[Infamous039]

ANYONE?????????????