New top end

[northshore]

So im going to finaly do the top end. im going to get a standard weisco kit, new gaskets, and the a noss cool head with 19cc domes, and a 4degree timing advance. im going to run race gas now. what kind of performance gains do you think i will get. worth spending the extra money or not?

2003 banshee fmf fatty's w/ titanium 2's, k&n. also, anyone know if you have to change the jetting?

[biggun6ss]

You will notice a power gain. Don't know how much though. I don't think you have to rejet for those mods.

[macgillivary]

yup you will notice some bottem end power but maybe a lose on top, banshees scream anyways though so its not much concern

when you advance your timing im pretty sure your supposed to go up one size on your main jet though

[sheefreak]

Jetting should be very close to the same. You will want to do a plug chop anyway to be sure. If you are doing a top end, jetting could be a whole new ballgame. You may even put it together better this time and have to go down in jetting. I would think you should be right around the 320 range at sealevel and 70-80 degrees F.