[Tom Goldman]

If you are limiting the travel now ,and don't need a whole lot of travel the coil over set up is OK .
Just make sure to install limiters keep from topping out the shock.
If your car likes travel use an adjustable shock with long travel like an AFCO big nose type or the QA1's with the stock type spring.
The tube arms are a good choice ,you can use the shorter arms if you need to narrow the track width a little.
Heres a photo of Frank Grillos Camaro with tube arms and stock type springs.
2900# ladder bar car with similar HP and ET's.
The tube arms really helped the front end geometry ,along with a rack conversion.