the shroud shouldnt cause a big problem with overheating, but im glad i had one when my police hd clutch fan let go, and destroyed my radiator, and shroud, it saved my hood from severe damage, now i have a black magic electric that has its own shroud, and i like it.
To the "cooler is not better" comment, i disagree, i track tested all three, 195, 180, 160, i found 180 to be good for living in tx and all, the 195 slowed me down on hot laps, as the 180 kept me making good power run after run, and not sluggish, the 160 was too cool, and caused a rich condition.
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Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer 
Race weight: 3,120
E.t-13.57 with 26x10.50's e.t. streets. 1.88 60'
mph- 99.92 mph
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