pushrod's to long now? wtf!

Ok guys im a little upset today, i was installing my isky E-4 cam in my 273 with a set of comp cams direct lube mech lifters & when bolting on the rockers with the o.e. pushrods & rocker arms i went to set the lash & its outta adjustment before the vale is fully closed!!! WTF?! anyone ran into this issue? man if i gotta order custo lenght push rods for this small of a cam thats really gonna fry me!:wack: Any ideas or had this issue?
Thanks.