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#1 |
that's right!
Join Date: Mar 2004
Location: Topsham, ME, USA
Posts: 101
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OK, So I have a 402 in my '70 4X4 and with 6 mpg, I've been considering a fuel injection setup of some sort. The increased fuel efficiency is just so tempting.
Either a multi-port or throttle body type. Has anyone with a big block done this conversion? You likey? I'm getting tired of dealing with my Edelbrock carb.
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70-K20-4X4 |
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#2 |
Senior Member
Join Date: Nov 2004
Location: Vacaville, CA
Posts: 2,272
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I bought a 1991 Suburban with a TBI system and a automatic overdrive transmission to put into my 67 GMC, should make it a nice cruiser and decent gas mileage. You could go with an aftermarket fuel injection but they are spendy. I have a 71 Chevy 402 with a turbo 400 in my 56 Chevy extended cab with a 2.73 rear end and I am getting about 16 mpg on that and it is not a light rig. Cruises on the highway very nice.
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#3 |
that's right!
Join Date: Mar 2004
Location: Topsham, ME, USA
Posts: 101
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Yeah, I'm still trying to figure out what I have for gears - I think 4.10? the tag on front diff reads "45-11" then "4.09" under that.
Anyway 16 mpg is awesome!
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70-K20-4X4 |
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#4 |
Registered User
Join Date: Jul 2005
Location: DFW
Posts: 463
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I'm going to do EFI when I get around to it.
Megasquirt II, Edelbrock rails (they make SBC, don't know about BBC), 4 barrel throttle body on my Performer RPM. It is rather pricey, but carbs are "yucky" ![]() |
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#5 |
Senior Member
Join Date: Nov 2004
Location: Vacaville, CA
Posts: 2,272
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The only problem with high rear end gears are no squealing tires for me. I guess I need to conserve the fuel anyway.
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#6 |
Registered User
![]() Join Date: Mar 2002
Location: Dallas, TX
Posts: 555
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Check this guy out, www.customefis.com. He uses older GM fuel injection parts. He may have what you need. I am going to put his system on my 305V6.
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1968 GMC 305 V6 3/4 4x4 Stepside 06 Corvette Daily Driver Dallas TX |
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