Hi there,I'm intrested in the engine head the second generation big valve 25.5/22.5 to fit and match my hispeed 68mm block together with hispeed camshaft 7.2mm..do u think can it be fitted perfectly on my spark T135 (4 speed mannual).If yes what does it comes with and how much.Lastly,how do I go about purchasing it.Will greatly appreciate if you could leave down your contact no. Thanks alot.