First, check this site:
http://www.kaufmannproducts.com/
Complete Explorer engine would be good swap -
already has the P (as in GT-40P) heads and
good intake, equal to Cobra intake, all you
might want to add would be a better cam, the
stocker is smaller than a stock HO 302 Mustang.
check these sites for retrofit stand alone mass air:
http://www.ronmorrisperformance.com/
http://www.swcp.com/~dilts/mustangs/...e/efi_conv.htm
http://www.jegs.com/cgi-bin/ncommerc...6&lastcat=2430
http://classicbroncos.com/webmap/Engine/Fuel_Injection/
http://www.windsor-fox.com
http://www.painlesswiring.com