Yes, the 1.46 valve spring TF240 heads are only $962 each from Summit (free shipping) so that is around $1900 for new heads. Not sure if the $1600 includes shipping back and forth to Hughes. If it doesn't then you'll need to add another $200 to the bill since 50 lbs heads are going to be expensive to ship. The existing Edelbrock heads should be fairly easy to sell locally for a few hundred each.