If you put the 160 stat in,this will trick the ecm into letting a little more fuel in,with the chip it will make a difference. It will give you better milage too because the engine wont work as hard ...Hope this helps,Erick
I had a 91 camaro that i did this too and found out 85 mph on the interstate,it would get 38 miles to the gallon,we left daytona beach,filled up there,made it to the north/south carolina border on 1 tank..19 gallons.in a 305 tuned post with a 5 speed...Too bad the car got wrecked

It was a good one...And one more thing,if you can move the air intake sensor away from the engine heat ,that helps too, 93 s-10 blazer 4.3 vortec gained up 4 miles gep gallon by that little move..