i have duals on my 89 sc. i start back to college monday, and if i can get it into the shop and on the lift i will take pictures and post them. or if you like i can email them to you so you can take them with you to the shop to prove that it can be done. by the way, mine has the original tank.
Mike Tuck (SuperXR7 on SCCOA) and Bruce (392Bird on TCCOA) both have side exit exhaust setups on their cars.