think its fair?

Well was just thinking about this because the guy with the 7.3 backed out and doesn't want to race......but a friend of my cousin, said his car goes 11.70 and said he's gonna spank me..he's got a 1970 duster with a 408 stroker. Iron head that he ported "he's 20". .530 lift hydraulic flat tappet cam, 3.91 gears with 255 drag radial.....so the old coronet is getting a new pair of shoes and were gonna see what happens, I don't think I'll have a problem handling this one.....if he doesn't back out