ACV is now disabled, no down side except for some minor decel popping on closed throttle. The ACV disable mod is super easy to do, however it requires making a proper sized plug, of which to my knowledge none are commercially available.
Current tuning:
07 SM 865/270
Stock heads & pistons
TPUSA 813 cams (Gen 1)
TTP Fire Starter 865 Option 2 Igniter
PVL (Nology) coils
IX plugs & TPUSA Magnecor wires
Short tapered TORS, inlets derestricted
BC intake manifolds, with heads port-matched to intake manifolds
Uni UP4229 pods mounted on modified Mikuni RS "50mm" de-horned velocity stacks (41mm OAL on the modded v-stacks)
TPS connected
ACV disabled (rubber plug used in place of vacuum channel grommet)
Keihin OEM 150 mains
NBZT needles, no shims
Keyster 40 pilot jets
Pilot screws about 2&7/8 turns out port side, about 4 turns out starboard side
Yamaha FZ1 Vacuum piston slide springs, cut to 88.9mm/3.5" OAL
Polished slides, slide vacuum port air holes drilled to 2.53mm (#39WG drill bit)
1.2mm throttle plate butterfly air bleed holes
18.5mm (or so) float heights (fuel level below gasket surface)
Sunoco 87 non-E gas + a splash of Lucas Octane Booster
