400ex rev.

[PowerJunkie]

is there anything on the market that can make the 400ex rev as fast as a 450 thanks.

[duke416ex]

Cams, carbs, rev boxes, pistons, all kinds of stuff. How much are you wantin to spend?

[PowerJunkie]

under a thousand

[Cody_300ex]

Get a big duration, low lift cam, get the flywheel lighened, port and poilsh the head. That will help quite a bit, my 300 with a p&p, cam, and a lightened flywheel rivials 450rs.:D