2008 M8 SLP Pipe Primary Weight/Spring 1000 ft.???

[TheBreeze]

I have a 2008 M8 with the full SLP pipe setup. I junked a cutler adjustible changing weights from low alt. to high alt. setup. I am now returning it back to low alt. I would like to try a set of non adjustible arctic cat weights. I have a RKT secondary 36/34 progressive helix, and the stock yellow white ti spring in the primary. I am not opposed to trying a different primary spring. Does anyone have and experience with a similar setup at 1000 ft, and have a successful weight/spring combo?

 

[Box Stock]

Not sure if this helps u or not but this is what my setup is at 1500'. 09 M8 SLP pipe kit, 125/340 primary spring, stock secondary with shift assist & 40/36 helix, & I ran 77g cat weights put me right at 8150-8200 rpms. I think that setup could use just alittle more weight, but it ran great.