hi Jays, at the moment I think that upgrades are just to much money, In a few years when smaller engines take over from larger units ( after all FI is swaping to 1600cc engines for all the race cars ) a lot more people will be producting products for this engine and the prices will drop., I can,t see how an engine that ford states as being 115 bhp can make more power with time, thats total rubbish, an engine can become run in but will not make more BHP.