Do I need all of these vacuum lines?

[chemsearch]

I have an 86 k10 with a 305. I have already found a couple leaking vacuum lines, and was wondering what vacuum lines/switches and things i could get rid of, by plugging lines, bypassing switches, etc. I already bypassed the temp sensitive switch that connects to the EGR valve, bleed solenoid, and evap canister purge. It seems like their are several other basically unnecessary lines, that attach to the heat riser, etc... I'm willing to sacrifice a little time waiting for the truck to warm up in order to get rid of some vacuum lines, as thats what many of these things seem to effect. Thanks to anyone with any input at all, cause i haven't been able to find anything helpful so far. -- Tom