hello friends
i made a cub from thermocol sheet fuse leg is 750mm, wing span 1000mm, weight of complete plane is around 600gm(with battery & all),i hv 30amp hobbywing ESC, and 7060 props

which motor will suit me plz help

Go for a 250 racer motor .
Gives power on demand

If you wish to buy a 6inch propeller you can go for 2205,2300kv motor or if you want to continue with 7060 then buy 2212 or 2826 2200kv motor. Whatever you choose take care that its kv is bit high about 1800-2300.

i hv Hobbymate HB2806 brushless motor, 1450 Kv it was working with 6070 props but after a crash see the story below

http://www.rcindia.org/beginners-zone/motor-cut-off-at-50-throttle-with-continue-beep/msg260624/#msg260624