When my rocker gaskets failed,the roo would start fine & idle fine even thou the plug sockets were swamped in 5 30s !.....But put your foot down she ran on 3 then 2.If I set off real slow the roo would run bang on,but any sudden throttle just killed it back to 3 & 2 firing cylinders & no disrespect to Subaru,but there a B4ll ache to work on in my opinion but i will not be getting rid in the foreseeable future,she's a family member now after obviously my missis & 3 children...."Had to say say that because she probably read's this too "