^ Agreed. They're mainly used to gain a little extra clearance between the upper and lower intakes so taller valve covers may be used. However, the hot exhaust gases may burn a hole through it, over time, if the EGR port in the lower intake hasn't been plugged.
5.8L, Vortech SQ, Powerstroke IC'er, GT-40 intakes, Vic Jr heads, Comp Pro Mag. 1.6 RR's, roller cam, LT headers w/3" exhaust, 62lb injectors, 190lph in-tank pumps, MSD ignition & FAST dual sync dist. FAST XFI SEFI. E4OD, Circle D 2800 conv., Punisher valve body, Rancho traction bars, Eaton LSD.
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