Best way to further lower my 1968 Camaro
 

I want to go lower in the front about 1.5 ~ 2 inches but I only have about .5" left until I hit bottom on the thread that's let on the coilovers.

Even with .5" left on the lower part of the thread the car is not sitting all that low.

Sorry I don't have a picture.

I know the options but I want to hear some opinions.

Here is some info regarding my set up.

Front:
18 x 18.5 255/35/18
QA-1 Adjustable coil overs
Global west control arms
no sway bar yet

Rear:
18x11 305/30/19
Rear DSE leaf w/ 2" drop

What is your frame height currently and how much room do you have left before the A-arms bump stop hits? Typically the Pro Coils will allow you to go as low as you possibly can while still retaining some suspension travel. In other words, the bump stop is usually what prevents the car from being dropped further, not usually the coil-over itself...

Do you mean where my fender sits off the ground or literally the distance from the ground to the lowest part of the subframe?

The driver side fender is at 25" and passenger side is 24.5"

Looks like I have about 3.5 ~ 4" until I hit the bump stop...

I don't think I have the "Pro coil" but the GM coilover conversion as the paper work states.

I'm guessing the "Pro coil" is shorter than the "GM coilover conversion" unit ?

I've seen many of the camaros on the boards and they all sit lower than mine.