I just sprayed it down with engine degreaser. Then let it soak for 5 minutes. Then got the high pressure hose out and got all the dirt off. Be careful around the distributor block and other important wires. But after that I dried the entire motor off with an old t shirt. Then I sprayed all the black stuff with interior cleaner/shiner. And wiped all the shiny stuff (cold air, pulleys), with clean cotton shirts. Thats it. Took about an hour. I let the motor run at idle for about 5 minutes to make sure everything still functioned ok.
By the way... I got a pair of 1.25" wheel spacers that I am selling. Looks awesome on 17 X 8 rims. Looks tough in the back. Will sell for $50. PM me if interested.