Holley on a Nailhead ??

John Henry · Aug 31, 2009

doc said: ↑

John,,,, Yep and yep,,,, The performance increase is well worth the cost and effort.... I wondered just why buick did not do it.... On my 64 riv[425] it made a big difference at all speeds in accelleration and did not affect the gas mileage at all... still at 18 mph on the hwy... i changed from the ragged carter that was on it to the 600 cfm holley and it performs very well... the poor old carter had had someone take epoxy to it and was not is too good of a shape... but i am a holley guy and if I change carbs it is always to a holley... but just as an experiment ,,, I modifyed the intake manifold first and put the same carb back on it without any other engine or car changes and it made a huge difference in the power.... and for less than $ 5 ,,,, I was real happy.... like I said , wonder why Buick did not do it....
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Extremely helpful as always.....:TU:

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Holley on a Nailhead ??

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