Originally Posted by protc3

i ran my co27 yesterday and geared it at 6.42 fdr.it was pretty quick for a stocker.i used 4499 brushes with a .030 verticle slot about .062 deep and trinity black springs + and -.this gave me more rpm for the fast,flowing track i ran on since i didnt need a ton of tourqe.it ran real good but its still a stocker.