Out with the 318 in with?

Alright, This is what i got a tired 318 with a bad cam. The Good or maybe not so good. I would like to build a motor. The good parts on the engine or maybe not so good. Eddy 1405 600cfm eddy 340 torker 2 intake. 340 X heads. I know theres no replacement for displacement. Should i go right to the 360. There everywhere around here. Can a std bore work? What cam? I have 1000.00 on my C.card just begging to get used. Should i punch out cyl's? It has stock converter so i know i have to get something better. 4.10's in rear but looking to go with something a lil more streetable 3.55,3.73?

I'm a noobie of engine building so be gentle:crybaby:

BTW my wife thinks Im doing a "tune-up":angel9: