Edelbrock Performer RPM II Dual-Stage Upgrade Kit #70087 allows you to upgrade to a Performer RPM II Dual-Stage System, which is capable of 100-400+ added horsepower in two stages. These kits include everything needed for installation including Performer RPM fuel and nitrous solenoids, lines, gaskets, studs and stainless steel jets. For use with Performer RPM II Single Stage Kits #70080 and #70081 with square-bore or 4500 Series carburetors.
Read More