Re: Smog pump
I've done this and it's super-easy, BUT it depends upon yr. I'm 99% certain it was '93 when serpentine routing changed a little. But up thru '92 it's a piece of cake (I have a '90 351 and my buddy did the same thing on his '92 351). At first I just removed the air pump pulley 'cause I was in a hurry. Then get a belt 2" shorter - in my case a belt for a 302 IS 2" shorter. The belt then just runs straight from the crank up to the alternator, just clearing the air pump enough to be safe. Works great. I later removed the air pump entirely, along w/the associated tubing running to the rear of the engine (makes spark plug replacement easier) and crap on the pass inner fender. Really helps to clean up the engine compartment, which is why I did it. Obviously you won't gain any horsepower but why have extra crap up front you don't need? Plus it clears room on the inner fender for storage, etc and if you're handy w/a welder you could fab some brackets and drop something else in place of the air pump. . . second alt? York? If you subscribe to the KISS theory and don't have emissions/visual inspections this is something to consider! This all began because my pump's bearings were on the way out, it was squealing bad.