Originally Posted by Bighag7
It could be a trim issue, Dolefins could help too and for 20 quid not a pricey test.
Except that he'll have to drill four holes in his cav plate...
My engine, on the other hand, came supplied with doel fins and holes, thanks to the previous owner. I must pop them on and see what happens. If the OP wants to hold off for two or three weeks (I have an Appointment in Scroatland this w/e) I'll report back before he resorts to the bench drill.
Edit - oh wow - you too. Fair nuff - we'll both test 'em then so!