As long as you're npt driving the car it should be ok. Keep an eye on it when you start it every couple weeks or whatever, if it starts puking coolant out real bad then shut it down.
You can get a brand new OEM manifold from AmericanMuscle for about $200, and install isn't bad. Get a Haynes manual so you have the bolt torque specs and sequence; the rest of the job should be pretty straightforward for anybody of average mechanical skill and can be done in an afternoon.
You can get a brand new OEM manifold from AmericanMuscle for about $200, and install isn't bad. Get a Haynes manual so you have the bolt torque specs and sequence; the rest of the job should be pretty straightforward for anybody of average mechanical skill and can be done in an afternoon.