Ok here's what I have all into my Predator..... Rath racing header pipe, HMF silencer (without the quiet core), 162.5 main jet, 50 piolet jet, drop in K&N filter, 3- 1" holes drilled in the back of my air box, an a 38 tooth rear sprocket, stock front sprocket, and about 1000 ice screws in just the rear tires!!! In our radar run yesterday all It would muster was 64.9 miles per hour. I know I can go back to my stock rear sprocket to get more top end, and I could stand to lose some weight (255), so what can I do to get closer to 70 mph??? I also have a aftermarket CDI box on the way. I have another radar run this weekend so please HELP!!!! Thanks in advance.

 

I would ship your carb off to Doug at Nicholas Cycle.....and have him to go through it with both of his carb mods. Then maybe get Rath Intake System, or get the Twin Air clamp on off of Doug. What cdi box did you get and where did you get it from? Or maybe just call Doug and talk to him and see what he says. Here is his web site...that is if you already don't know......Nicholas Cycle.

 

Bump

 

I agree with RAJ........you next mod has to be the carb mods by Doug.........you won't believe what they will do!!!! Then all you have left is going into the motor......you could get a high comp piston(or other stuff, you can pm me for it ya want to talk about going into the motor, but don't unless you are serious.) Also, you might want to be thinking about a good suspension.......power is not good without a way to put it to the ground......