360 rings. gapless?

ok....so i have decided to get the kb107's for my 360. now its time to choose rings. Are the gapless rings worth the money? i found one that isnt too bad of a price but it is rated for street/stock. I plan on having about 350-400 hp by the time i'm done. they cannot be used for over 10.5 - 1 compression. the kb's should be under 10-1 i beleive. can anyone confirm this?

here is a link of the first rings i am looking at

http://store.summitracing.com/partd...3+4294908395+4294871792+4294890188+4294871735

second...racing

http://store.summitracing.com/partd...908395+4294890187+4294903870+115&autoview=sku

or...would i be better off spending the money and buying these? they would be nice, but i dont think they are worth the extra $130

http://store.summitracing.com/partd...871792+4294890188+4294871735+115&autoview=sku

or am i wasting money and just get some good sealed power rings?

http://store.summitracing.com/partdetail.asp?part=SLP-R9903030

thanks for your help. i think the second ones would be my best bet, but i am looking for ANY advice and tips other mopar gurus have.