hd-51,Thanx for the info.The belt pully would be the way for me to go(cheapest way.)But again the cam chain vers. the gear drive by s&s.Is the gear drive alot more whiney.(noisey).Again at low rpm in hot weather I get ping. so im afraid if i change the gearing (in the primary or the belt pulley)I will get more ping.Their has to be a reason the serg is the only bike geared at the primary diffrent.I bet it is to try to elemanate the ping you get(I think it is the efi which I am not sold on at all.Alot of money to put out after buying a 25,000 bike.I went through the r. brakes in 4000 mi.Went through a tire in 10,000 miles.I like the way it runs but dont like taching at 3400 rpms at 70 mph.This bike is nice but not what I expected.Been riding for 16 yrs.,put 120,000 mi on my evo softail not missing a beat.Put 20,000 on my pan, again no p[roblems,but I have to change the cam chain tencioners every15 to 25000 mi(so they say).any info on these issues would be greatly apreciated,headpan62