Revise location of choke cables as they pass through muffler mounting and set to corrrect length. Fabricater 3/8" nylon spacer for choke handle to give maximum throw on actuation.
On throttle cable, cut to correct length and swage end onto 1/16" bushing, secured with 2 swage compression fittings. Adjust idle position set screws on both carburetors. Set final length of cable with cable adjuster.
Locate position of egt sender probe on exhaust pipes.