On Thu, 27 Jun 1996 RABBITT_Andrew at mv8.orbeng.com.au wrote: > >>>You need (or at least should use) knock sensor handling on your > turbo-equipped Corvair.<<< > > Knock sensing on an air-cooled engine, now there's a challenge! Why? I've seen several Corvairs with HEI and ESC that work quite well. Martin Scarr