318 help..

Your English is good, better than a lot of people from here. Like KosmicKuda said, you are probably losing some compression with those heads.

Your intake should have the name on it somewhere. It's usually somewhere around the thermostat. The Edelbrock Performer is a good intake for a street 318. If it's an Edelbrock, and is not very tall, it's probably a Performer.

You can use the 360 heads, but you will need to increase the compression. You can do that with pistons, decking the block, milling some off the heads, or a thinner head gasket (or all of the above).

Find out what kind of heads the other set is. If they are the 302 heads, they are a good head for a 318, and would probably be the better choice for your goals.