92 ho 5.0 questions

[proslow]

hey im new to the site and to the whole mustang scene. i got a 92 gt that is "suspose" to have some mods done to it. however some old lady pulled out in front of me and i pretty much totaled it out. so the motor is out of it and im swapping it into a 93 coupe. that was a 4cyl auto. i got a cam for it to give it a little thump. i went with the trickflow stage 1 cam 221/225 dur. and 499/510 lift. i know some stuff about cars mainly chevy. how are the pistons numbered on a ho 302 i know number one is on the passenger side first plug. is it 1357 on pass side. and 2468 on driver.

correct me if im wrong the fireing order is 13726548 for the ho.... its a roller motor so how am i suspose to adjust the rocker arms and lifters? flat filler gauage?

any help would be apreciated.