Im no expert but I've noticed a diffrence on oil filters, the holes where oil flows thru, some of them have bigger holes than others, i always go with ones that either have bigger holes or have more holes than others, i feel they let more oil flow thru them, which leaves me with a choice of a k&n or mobil 1
87 grand national
60 psi mototron injectors
V 5.7 tt chip
Accufab fuel pressure regulator
Walbro 255 fuel pump
Hotwire kit
160 stat.
T04b turbo
K&N cone air filter
Dual radiator fans
Hooker exhaust
Scanmaster