thumper is my wifie she has the 103 fat boy , i'am the the old man with the seeg, yes i have a race tuner, slip- ons, air breather,100 hp now , but would like to pick up 10 more ponies, but i like the way the bike is as far as dependability ,like in traffic ect., my experince with higher comp. seems to lead to more heat, hard starts, spark knocks, i was just kicking around the idea of some more goodies, but my friends say my bike runs so good that they wouldn't do anything to it ,every bike i ever had i seemed to screw it up with trying to get to much hp, but yet i keep thinking maybe i could squeeze a couple more hp's out of it with out losing the streetability, so give me some suggestions.....thanks in advance