Yea truck manifolds sould never clear. I had to chop the passanger camaro one and move the flange to even make that fit but it fits now.
You can run stock alternator bracket and just leave the PS pump off and run the shorter belt.
I used universal weld in mounts with a single bolt that slides in from front but if you have it set up for sbc they make adapters to bolt a LS right into sbc mounts so that should be easy.
For fuel system its a stock tank behind the seat with gravity fed 255 walbro pump mounted on frame with a return bulkhead goin into top of tank. I just use the stock regulator on the rails of the older return style LS truck. Vette filter will work in a returnless system but i prefer return style.
