r0to-D3wd

hey guys i have a fb stock. with a webber 48ida carby. i still need to jet her properly and change choke sizes. im gunna run 190main over 150 air. 40mm chokes and 300n/s . i put a fuel pressure gauge on it and its saying around 7psi. i feel like its been using alot of gas and i can smell it all the time like unburnt fuel. what psi should i have? do i need to get a regulator and cut it down a couple psi? or is it my jets that are sucking in unwanted fuel? the jets that are in it is 120air over 135main. f10 tubes 70idle. and 37mm chokes. 200n/s. if yall can help me out thatll be great thanks! -denton