what's the most negative offset i can run?

Hey guys,

Just woundering what would be the most negativie offset i can run on the front of a standard mk1 escort guards. I know iam not going to be in the negative numbers cause that would just be impossible but iam meaning more towards the lower nmbers of positive offset. Just want the most dish i could get with out running into to much dramas when turning.

rim size i will be look at either a 15 x 8's or 16 x 8's, tyres will be around the 205x40's not 100% sure on tyres.

Thanks Dayne