AED-6580A Pro-Series CNC Billet Metering Block (Gas 4150 Complete) AED manufactures a complete line of Billet CNC Metering Blocks in house to provide the ultimate in fuel curve tuning & adjustability. We have spent almost 6 months on R&D to provide you the best product available. We have standard billet blocks with fixed orifice sizing for all emulsion circuits. Idle fuel & power valve restriction channels are adjustable. Our standard blocks come with a great baseline tune-up right out of the box. "Pro-Series" blocks feature totally tuneable screw-in repalceable bleeds in all circuits. They feature a special length circuit with 5 seperate emulsion bleeds. For the serious tuner trying to fully maximize your combination these are a must! Billet blocks are available in 2 & 3 circuits with gas or alcohol. All Billet Metering Blocks are machined from billet 6061 stock & anodized for appearance & protection. We can provide custom Bleed Kits for tuning you Billet blocks. Alcohol blocks use a 5/16 (larger thread) than gas. Add "A" behind part # for Pro-Series. <*** Metering Blocks do not include jets - power valve * Alky jets are 5/16 thread |