Year One, Ford Racing Performance Parts, Texas Mustang. 5.0 Resto one of the best. Shop around, though, lot of parts the same at these places, but different prices.
Could be the best advice you will ever get and shockingly true. For example I was looking for one of the new Boss blocks and 50resto has them for $200 less than everyone else
I like 50 resto. I was at their store yestarday. Everyone I talked to was very friendly and willing to help. They also had everything on my list in stock. Good people Ill be spending alot more money there.