Very tidy looking car. How many miles on the clock?
I see you have a blown one. If you really want to exploit its full potential I would recommend fitting the usual power adders - alloy heads, aftermarket inlet manifold, 65mm T/B, Ford Racing headers (exhaust manifolds to you and I) and maybe 1.7:1 roller rockers. The cast iron exhaust manifolds are particularly restrictive, so regardless how hard the 'charger is pushing air in it can't get out because of the puny ports. The Ford Racing headers are fabricated so able to accommodate more generous ports. The ceramic coated ones are worth the extra - retain their shiny silver appearance with discolouration.