pushrod's to long now? wtf!

Ok got a push rod made & took it work (where we have big mics) & it is 7.320(and thats allowing a fudge factor in there to of apx. 20-30 thou). & what i have come up with is i called around & mancini was able to help me the most i ordered there 7.375 push rods over all length & a complete set of rocker shaft shims & that should put me well withen where i need to be with out messen up rocker geo too. Man dont remember this kinda issues with the 'ol 340, but i did replace everyting when i o/h that motor & stayed hyd to.