All posts by Madrugada

Progression holes DHLA40

Tagged for Alfa Romeo. On the left a DHLA40 originally for a 1300cc with 3 progression holes, on the right a later DHLA40E originally for a 2000cc with 5 progression holes. More or bigger holes establish a leaner progression phase.

DHLA40 for 1600cc and 1750cc also have 3 progression holes, the DHLA40 for 2000cc has 4, pictures will follow.

dhla40_dhla40E 1