Bolt on performance enhancers

[MiamiCobra]

Well, since I've decided not to sell - I'm curious as to what kind of bolt on performance enhancing items I can put on my engine to get a few more horse out of it?

Here are the specs on the engine today:
The Engine – By Don Scott, Minnesota Classic Motorsports
1969 351 Windsor completely rebuilt, balanced and ported. Complete from air cleaner to pan, includes aluminum Manifold, aluminum valve covers, aluminum pulleys, new edelbrock carb, Electronic distributor, chrome coil, new water pump, alternator, starter, 9mm Ford wires, new high performance pistons, cam, lifters, chrome moly Rings, hyperutetic pistons, double roller timing chain, pushrods, heads Are pocket ported, 3 angle valve job, hardened seats, high rev springs, chrome oil pan, SVO dipstick, Chrome alternator Bracket, chrome wire looms, tin motor plate, ARP 12 point stainless bolts, Chrome coil bracket, throttle cable and bracket. Holley 4di FUEL INJECTION for awesome starts and consistent power – computer programmable!