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acidangel316 · 06-20-2001, 07:08 PM

i have a '89 GT 5.0 w/the following:

MAC 70mm tb and spacer
76mm C&L MAF
K&N cold air intake
MAC underdrive pulleys
TFS intake
..soon to have new computer & subframe connectors

i want to mess with my fuel system but i want to keep as much gas mileage as possible, this being my street car. will having a bigger pump and reg. make a difference w/out bigger injectors, and will bigger injectors hurt my gas mileage, like 24#'s?

06-20-2001, 07:08 PM	#1
acidangel316 Registered Member Join Date: Jun 2001 Posts: 27	which mods hurt gas mileage? i have a '89 GT 5.0 w/the following: MAC 70mm tb and spacer 76mm C&L MAF K&N cold air intake MAC underdrive pulleys TFS intake ..soon to have new computer & subframe connectors i want to mess with my fuel system but i want to keep as much gas mileage as possible, this being my street car. will having a bigger pump and reg. make a difference w/out bigger injectors, and will bigger injectors hurt my gas mileage, like 24#'s?