I pondering installing a procomp pc6al ignition box on my 1985 blazer with a sbc 350 with a new coil new distributor package i have no experience with ignition boxes and am unsure of what benefits it will provide? I have the parts. The instation seems easy enough. Is there anything I should be aware of before I start. Also it has a built in rev limiter I have no idea how to set it or what it should be set at any help or suggestions would be welcome