Austin Seven Heads
Lee Motor Racing - design
LRM, designed by Roy Lee of Lee Motor Racing and distributed by Super Accessories in the 1950s and 1960s.
Featured 7.4:1 compression and three water take offs. Apparently a real performer but subject to warping?
Reference The Austin Seven Clubs Association Magazine, publication No. 1989A, pages 14-20. Article by Robin Boyce and Andrew Lowe