<VV> valve seats

[mike & bev mann]

about 25 years ago came across a guy named dick card (san francisco area)
who told me about oversized seats for a 140. ordered 2 sets from well-tite
and cooled them with dry ice and heated the heads and installed. worked
great with many runs using 25# of boost. don't forget that as the hp
ratings went up on porsche so did their valve seat failures. they tried the
whale taile and lots of oil but the problems persisted until they went to
water cooled heads. on the new engine steve goodman went thru the heads and
by limiting the boost to 15# i don't think there will be a problem-mike
mann