62mm Uma Injection Setup

Hi everyone...i lke to share my ideas for a 62mm setup...i will start from cylinder which is 62mm uma...cam custom,ecu reproggramming,uma 32mm throttle body,uma injector 160cc and i need informensions about the cylinder head...i heard for beryllioum cooper valve seats and i am comfused about the right valve mm 21.5-23.5 or 22-19, yy pang springs help me to find the best..



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