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67-ls1 · 12-21-2014, 09:37 PM

Is your engine carbureted or fuel injected? That makes a HUGE difference. If EFI, you could use an O2 sensor to get the A/F ratio closer to stoichiometric. If not, add it.
I agree with your philosophy regarding increasing the FE, but trying to keep some level of why you own the car in the first place.
Good luck!

12-21-2014, 09:37 PM	#17 (permalink)
67-ls1 Eco Rodder Join Date: Nov 2014 Location: Walnut Creek, CA Posts: 105 Thanks: 25 Thanked 52 Times in 34 Posts	Is your engine carbureted or fuel injected? That makes a HUGE difference. If EFI, you could use an O2 sensor to get the A/F ratio closer to stoichiometric. If not, add it. I agree with your philosophy regarding increasing the FE, but trying to keep some level of why you own the car in the first place. Good luck! Last edited by 67-ls1; 12-21-2014 at 10:50 PM..