For those of you wanting to supercharge or turbocharge your engine with a blowthrough carburettor system, you will need one of these. This Italian-made Malpassi fuel-pressure regulator monitors your boost pressure and raises the fuel pressure proportionally to keep the right volume of fuel in the carburettor bowl. Weber Specialties have vast experience with blow-through carburettors, and say they have found the Malpassi to be the best in the business for both carburetted and fuelinjected systems. Weber are also the Malpassi factory distributor for New Zealand, and the carry the full range of Malpassi products in stock. Available for $184, contact Weber Specialties for further information, or head to weberspecialties.co.nz.