The engine that is coming out ran really nice with the stock intake and the spacer and the street demon. I can attest to that. I gave the engine builder a stock intake I bought from a boardie in my area for the new engine but when fluxed it showed a crack. The old engine intake was also showing some minor oil leakage that was pooling around a few mounting bolts so I dont trust it really. I think I am going to buy a new RPM and suck up the cost. Oh Well there goes another $350 bucks! JB