I also am converting a asp 180 FS and plan to use a WT454 from a ryobi can the intake pulse be taken from the inlet manifold on the adapter plate and do away with the fuel lines?
Also the breather, could this run to the adapter plate also for the oil return.
Is the WT454 ready to use as is or does it need modifying for the intake pulse.
dogshome any further updates on your conversion, the video sounds great and idle is very smooth.
Could I suggest you use 5 cells on the ignition as I have found it gives higher rpm and reliable running.