Don't bother with BC cams, the profile is more a ~260 in which case you may as well leave the stockers in. Go Kelford or Cossie etc. Let me know if you are after a cheap bottom end if it works out thats the problem. Hopefully its just a headgasket but Subies rarely drop a gasket without having been pinged hard.
199-E Camshaft
Manufacturer
Kelford Camtech )
274/270 Duration, 10.60mm Lift. Road-race cams, suit built engines, strokers, nitrous etc. Suits up to 30lb boost and 8000 RPM with our recommended valve spring
$900.00 USD