I'm going to tell you what you need to run 14.5's but you really will not be able to run the stock internalls, if you want to run mid 14's, and be able to depend on your engine to last. The big downfall to the focus is the connecting rods, they tend to shatter and brake and yeah. Really if you want to run mid 14's but don't want to replace the internals you should look into the ford racing intake manifold, a ford racing cnc machined head, a set of stage 2 or 3 crower cams and cam gears, a fc race header, bosal flexpipe, borla exhaust package, mafs with bigger injectors, a aem fuel rail, a aem CAI, a set of nology wires, and of course a diablochip or superchip if diablo doesn't make one for your car yet. All of these items have simalar products to them i was just being specific with names. That right there is alot of power and should be able to get you into the mid 14's if not faster. That is a killer setup when dyno tuned right but will cost you an arm and a leg. Check out focuscentral, focussport, focusparts and myfordperformance for these parts. And good luck in your indevor, oh yeah i'd replace the pistons with a higher compression set and replace the rods with something other than stock, just about anything is better than the stockers. that would really give you a great n/a engine