| Re: Power Drive [message #327195 is a reply to message #327192] |
Sun, 17 December 2017 00:55   |
NextGenGMC
Messages: 146
Registered: December 2017
Location: Washington State
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Senior Member |
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bwevers wrote on Sat, 16 December 2017 20:52Sounds like you have a good set-up.
Most people prefer final drive ratios between 3.50 and 3.70.
The power drive is equivalent to having 3.50.
The 3.21 will bump it up to 3.66 equivalent.
With the 3.07 gears, the carburetor power enrichment circuit
kicks in a lot because of the low manifold vacuum.
I must admit that carburetors are a mystery to me... I feel much easier with computers and fuel injection (conversion project is going to happen some day). Would it be beneficial to change a final drive ratio to bring it closer to a 3.55 combined number?
Vadim Jitkov
'76 Glenbrook 26'
Pullman, WA
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