weve actually got a 1986 gmc seirra 1 ton but since chevy and gmc are the same thing ill post hear. its got a 454 that doesnt run worth sh!t weve replaced sparkplugs, sparkplug wires,distributer cap, points, fuel filters, etc... you name it weve fixed it. ive beed told we should just heave all the emisions junk and put a nice old holly or eldebrock carb. what kind of holy? how much? What would you do?