An Explorer upper/lower intake-manifold set will top off the new engine. As with the cylinder heads, porting the intake is highly recommended. There are great deals online for already ported intakes. Although we scored the heads and intake as a set (at the swap meet), a Tom Moss-ported Explorer manifold was purchased by way of a classified ad on www.corral.net. We’re using the Moss intake; eventually we’ll port the swap-meet manifold and sell it later. Bartering, exchanging, wheeling, and dealing—that’s the essence of upgrading any aspect of a Mustang when you don’t have a huge budget.