I just had pullies installed.
Car seems to run a bit hotter, and the turn signals blink slower (due to a lack of charging at idle). I compensate for this by driving at the red line more
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'87 5.0 LX Convertible 5-spd.
Headers, cat-back, Bilstein shocks & struts, springs, pulleys, K&N filter, full-length sub-frame, strut tower brace, 3.73s. Aren't these cars great?