Edelbrock Heads Sound Like They're Terrible

I was lucky to have bought a pair NTB from a local member to me.I saved the cost of full price,also shipping and taxes.I had the mildly P&P,flowed and springs,shims for a roller cam,roller rockers.At the end of all the work and needed parts I,m in at least $3500 into my heads.I,d probably have close to $4500 in them if I bought new and had shipped,taxes blah blah.I know this sounds expensive,but we all know,to get real HP and torque #,s out of a SB stroker engine you need good head work.I,m happy with end results and being able to run 10,s on pump gas.Buyer beware,your gonna need to spend some extra cash to have these heads checked and worked for best performance.JMO