the air foil does not do alot. there is a vortech elbow that i am using, it has sort of an air foil in it.
http://www.percyshp.com/Seal4Good.html
i would use the gm performance opti

 

ok, ill look into that elbow, thankyou. so abs light turned on now. used cars are such a gamble, bought it for 4500 but im stick with it. is it safe to drive if the opti sucks,,it takes two cranks to turn on now, speedometer is wobbling and shows wrong speed now. is that all opti also? the car has 80,000 miles.
f your a lt1 guru please add your 2 cents. this is my first car, i have steady income to fix/upgrade (military)
thanks

 

after too weeks of injection cleaner and engine cleaner, my car is fine. getting headers this week. took a "riced" out 350z last night. pretty stoked

 

What do you mean by injection cleaner and engine cleaner?

 

the stuff i pour into my gas tank, and the stuff you put in with your oil when you get an oil change, i cant remember either of the names( i have recepts, i just to lazy to look) but i did research to get the ones that accually work

 

let me know i want to kno!!

 

sea foam

 

use sea foam as a last resort fyi

 

Why do you say "last resort." I use that every 20-25K miles on my vehicles.

 

i use sea foam all the time. any reason you say "last resort?"