open exhaust ports??

[dkjohnson04]

so i just tried to install a header on my teg but things arent goin as planned and i need to finish in the morning, there is no exhaust manifold on the motor at all right now, should i put rags or somethin in the ports on the head to keep moisture out or will this be an issue just overnight?????????

thanks

[dkjohnson04]

nevermind, just got done putting stock manifold back on