I've been running the 32/36 DGEV for years. I bought it from National Carburetor in Jax for about $275.00 with a core. They suggested that I go with the 32/36 rather than the 38. You will not improve your mpg, at least from my experience...but the power increase over the Hitachi was noticeable. (I converted a 2.6 from FI to carb)

Good luck

'86 Isuzu Trooper II, Durabak coated exterior, 4ZE1 2.6L, Weber 32/36, K&N, Rancho RS9000, Indy4X shackles, BJ flip/T-bar crank, Pacesetter header, dual core radiator, Mazda seats, 31x10.5 BFG TAKO's