"im gonna open up the intakes"

If you start grinding in the ports without having a great deal of experience and knowing exactly where to remove material, you'll most likely turn a decent set of heads into junk.

"what else can i do to get them to flow better thats not gonna break the bank?"

Just do a 3-angle valve job on 'em and call it good until you can afford a better set of heads.

" the kit im going to buy for my motor said it will give me a 8.6:1 CR with the 76cc heads but im putting a bigger cam in it for a 9:1 ish CR"

From the way you've worded this, I can't tell if you are thinking the cam will change the c.r. or not, but it won't. If you're saying that the cam you want will work with a 9:1 c.r., it will also work with a c.r. of 8.6:1, they're not that far apart.