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Old 09-03-2015, 12:20 AM   #22
Chevy Fleetside
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Join Date: Sep 2006
Location: San Francisco
Posts: 4,787
Re: 63 big block swap help

I am running a 700R4 behind mine. It was built strong because it was in my 79 4x4 for a while and I was towing and hauling stuff. It has a reprogramming kit and a corvette style servo. The one two shift is pretty harsh but I kind of like it when 2nd gear chirps and if I am in the throttle enough will get a tiny burn out shifting into 2nd. On the freeway I am taching 1800 to 2000 RPM's at 70 MPH. I am running 3.08's in the rear with 28" tall tires. I don't really know the gas mileage but I think I was getting 12 on the way down to LA but the tune was off on the engine and carb. I have since tuned all that but have not gone anywhere.
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65 Short Fleetside BBC
65 Long Fleetside 283 3 on the tree for now.
my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536
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