the stock stuff works pretty good. if you have a/c and an auto and live in the south its going to be on all the time so no benefit to taking it out. if you live in a cooler area with no a/c there can be some benefit but you dont want something that blocks the engine/rad. most of the cooling is done by the air going through it from driving. there are limitless options for electric, depends how much you want to spend, you can get one from a newer truck and modify it to fit, get a aftermarket kit from summit or something. not real easy to do a sender based kit on that because the pcm needs the signal from the sensor in the top of the manifold for fueling and the one by the driver side head is for the interior gauge, dont think there is any other ports.
1998 Bonneville SSE
2007 Monte Carlo LT-KYB, Clarion, Polk audio, Kicker
1999 Yukon SLE-KYB, Air lift, Reese dual-cam, Tekonsha
1987 Firebird-355/th400-nothing stock