Quote:
Originally Posted by dhs.buckley
i have heard this, but the fuel consumption i have been told would be almost double with the double pumper,
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Both the vac and mech secondary carbies you would use are square bore so at cruising = no extra fuel consumption, around town if your using more than half throttle = some extra due to the secondary accelerator pump activating some what, but full throttle like track work really works the secondary acc. pump so definatly more on the track - but worth it.
My 302 is out to 310 with cam, heads, mechanical pump, single fuel line with 600 DP square bore about 300 at fly wheel - goes to 6,500 quite regular without starvation.