What do you think I would gain moving up one set of weights?? All stock clutching with an HPS can.....getting about 7800-7900....my elevation is 1800ish.
How many miles are on your sled? If it isn't broke in yet just wait, it should pick up 100+rpm. I am running a blue/pink primary spring, 60-42-36 helix, derlin washers and 10-68's and I pull 8300 at sea level. Waiting for my mtx weights.
I am at 1600 to 1800ft as well and i run 10-68 weights with jaws can and it pulls 8200 to 8250 no problem all day long. Have you run the sled without the can, there is a recent post that guys have been losing rpm with the hps can but nobody really seems to no if it is the can or clutching yet but id check that post and see if there is some new info. on that.