- cam was installed at engine (comp cam *cam quest online* recommended)
- engine no vacuum ignition advance
- PV 4.5 at the Moment
New experiences
Ignition 18° total 34° / springs 1x silver H, 1x silver L
Idling still too lean. Afterwards I restricted IAB with a wire of 0.041". At idle 850/900 the AFR drops to 11.5. Once the revs moves to 2000, AFR up to 12+, accelerating AFR 12.5. Engine sounds better than before.
On the test drive the feeling has been better than before. Sec. vacuum valve working with purple colour spring, opens at approx. 4000 RPMs.
I replaced the wires on both IAB with the wire tubes. Hole Diameter 0.067" (Foto).Idling at 850-900 AFR is 13-14. Vacuum 6-6.5, idle mix screw 1 3/4 turns open.
How can I adjust the idle mixing without the plastic tubes on the IAB? Opening the IFR?
SBF 302 - YouTube