If it's between the B and the E cam, go with the B-303. It works real well with 1.7 ratio rockers also. Although as others have said, a bigger cam with stock heads will do very little for performance, and just eat more gas.
------------------
1985 Mustang GT
'85 GT 12.96@107.1 / '72 Mach1
Long list...check website!!
My Website