| Re: The "4.9 liter turbocharger, stage 1" thread. mines already efi its a 90 4.5pfi . it seams to share alot of the same parts that the 4.9 dose all except for the trans is about the only thing i can think of that is different right off the top of my head . so now the question is could i just use a ecm out of a 91 and use an electronically controlled trans. but heck while im at if it would fit ide just throw a 4.9 in there and call it a day |