heads for 340

I agree with new heads unless you can get the work done cheaply, er, inexpensively. There is nothing wrong with a stock head and working it up and porting them out. But the cost of doing so must be factored in.

Also, do not assume the new head is a OOTB and ready to be bolted on and go. The new head should be checked out at an additional cost. Something most flag wavers of a new head do not tell you.

So, if the new head is $200 more, add an extra amount, (Check with your machinist for price) to the new head price and think about it all.

The extra amount could be worth doing the OE head and with a bowl porting as well.

It is a balancing act.