I need suggestions or advice on how I can repair. remove or cover this cracked vent in the center of dash. I bought the car with this damage.

you might be able to find a donor in the junk yard. Could pull the whole dash or just cut that entire section out. Then maybe glue it in to your dash. If you took your time it could look clean and probably hold up decent. A dash mat would cover it up.

yeah thats unrepairable. youl need another one, heres about how much a brand new one will be.
http://www.camarocentral.com/product_p/das-34.htm
there are companies that specialize in your car and would probably have a usd one in good condition for alot less

Dash mat is simple, cheap and it covers the problem. AND you can even get them embroidered for little to nothing extra

thanks for the advice A dash cover would either cover the vent completely OR have a cut out for the vent which wouldn't fix the ugly. I don't know if this vent is suppose to covered completely. May need it for cooling ---not sure.

defrost.
Maybe a mat cover with a screen sewn into that hole. You'd ahve to be looking hard to see the dash was broke at that point.