I have just spent an unsuccessful hour searching the archives regarding baffling modifications to address relatively hot CHT on No.'s 2 & 5 on the LNC4.  I am aware that some builders have made a small opening in the baffling ahead of No. 5 behind the alternator.  I would like to know the dimensions and exact location that has been successful in lowering  No. 5 CHT.  I have also read here that a "blister" in the forward face of the oil cooler box will help lower No. 2 CHT, any comments?

David Standish