2.8 swap

i was wondering why the camaro 2.8 makes more horsepower and torque compared to the s10 2.8. What parts make the more power (cam, heads, and intake).

i took the heads off the 2,8 i just bought and it says .75mm I know that that means its been bored out but what is it in inches.

when trucks and cars have the same motor but ones makes a little more power it is because if usally the heads, and intake,or intake manifold.

the 2.8 is nothing to be trying to make power with, they have no balls what so ever.

im not trying to make power i blew up my 2.8 and we cant find any multiports out here so i bought an s10 2.8 and changing the intake, heads, and cam from the blown camaro 2.8 to the s10 2.8. cause when i was on work experiance at a local shop we checked out the specs and the camaro made, i think close to 20 hp and 20 tq more then the s10. and when i took the heads off the s10 motor the pistons were stamped .75mm i didnt bore it over the guy who had it before did it.