what up? i broke my brushes off the starter.... from the sounds of it, you may be as far as you can go right now... as hoolander said, check your var to see bout it and rollers... a var will give you bout 3-4mph top end.. 7 rollers are good for me BUT 7.5 gives me about 4-5mph top end, have hit a top speed of 52(great conditions too, avg 47: for now!!. ).. im putting a var and a reed cage on mine to see what up.. i am currently running stock jug... yeah, hoo may b on sumthin there: i live in mtns here, 1500 springs throughout help wit the hills(thinkin y my take off suffers a bit,1500contra: but good on ALL THESE DAM HILLS), AM gonna try a couple new setups this week to make sure... am finding out that it starts getting expensive to stay above 50+mph.. seeing several issues wit cheap bbks.. done scared me....lmao