Lighter wallet with the stoptechs, but I understand, he would stop better.... 180, I build the HP around my weight, I am not dieting.....besides, you need a little weight to counter the spinning lol. I would think, seriously, you are building a race car you would know what to remove...but, that's just me.... Literally, anything that doesn't make the engine go.....a nice project. You might look at the Inde Sports Needswings car....he has stripped it to the bone....