Give RPI a ring with your engine details. They confirmed the edelbrock is over jetted as standard for a 3.5 and sent me a pair of "metering rods", (needles) and jets for £14. Changed them in about a half hour, went for a blast and am convinced the car goes even better, can smell less petrol, lost the sooty deposits from the tail pipes and lost some of the "poping" on over run (unburnt fuel?).
Bob
