As it goes with the theme here I have a d15b7 wit the head milled .045" , a z6 intake manifold and full exhaust headers back.....its got some pickup but I feel like im still missin that extra step....with the head milled like that can I still put in some a1 pistons without worrying if they will smash into the valves?.....and is the stage 3 crower cam worth sendin mine in 4 a regerind?
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