Can someone share some information on a 1987 Callawy Corvette?

[1989 406]

I am not very familiar with the upkeep especially with the twin turbo set up. Does anyone know how they compare to a regular C4 of or around the years 87-89?

 

[jonstr]

Maintenance is not very different than the standard Corvette, except that oil level and changing is more critical since the turbos feed off the main oil supply (oil capacity is higher also, about a quart, IIRC). Changing the plugs is quite a challenge on the passenger side, the back 2 plugs are a bear to get out.

You can find more information on maintenance at The Callaway Owners Group.