Are there any real Mopar machinests left ???

Picked up my heads yesterday and they look fine now.I also mocked up the Harland Sharp roller rockers on one heads and the geometry looks fine as it did before.Only problem is he screwed me out of another $56.00 .He claims that the Milodon intake valves cost more than the Ferrera's.That is a straight up lie .The Milodon stainless intakes are $80.00 and the Ferreras are $120.00 (thats $40 less).Instead of giving me the $40 difference back he charged me another $56 .Is my math bad ? Here is what i think happened .He got the Milodons at his cost (which was the additional $56.00) and kept the Ferrera's that i paid for as an added bonus.My total to rebuild these heads $836.00 :Comp Double springs ,Comp retainers and 10 degree super locks ,new set of milodon stainless intake valves,and a set of shims ,three angle valve job ,and resurface them both.The shop that broke it off in me was BILL SPENCE ENGINES in Sherman Texas.Do yourself a favor and steer clear of him .Like i said they look fine now ,and i even pulled a few valves apart to inspect and reasembled .No complaints on the job in the end ,i just dont like being swindled out of $$ to pay for his mistake.Didnt really like paying extra money ,but i wanted my heads back ,so whatcha gunna do ? Atleast i can move on now ,just wanted to put the word out about this shop ...