Most people that drop in the 351's usally have to go to a 2 1/2 cowel. Depending on the intake you have the upper may fit, but the lower will not (351= taller deck height). And the pulleys will work with no problems.
------------------
79 hatch w/ NA 347,stage 2 Canfield heads, out of the box Victor 5.0 intake, solid roller cam, Aeromotive fuel system, proshifted TKO II.MY CAR
http://www.mustangworks.com/cgi-bin/...splay.cgi?1288
93lx all stock + tremec