91 F-150 4x4 w/302 swap ????
 

Is the windsor swap a straight swap? Do i keep the 302 wiring and computer? Will i notice much difference in power?
I live in a mountainous area and my truck is slow in the hills, like too slow. My tired 4cyl nissan 4x4 out pulls it easily.
Is there anything other than the windsor that is a fairly simple swap?