408 sbc intake

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zephyrc
Posts: 24
Joined: Wed Jun 24, 2009 12:53 pm

408 sbc intake

#1 Post by zephyrc » Tue Aug 03, 2010 1:22 pm

i have a 408 sbc, 11.8cr..... 263-273@50 cam 110 ls... 950 hp holley dp.. dart pro one 230 heads about 5 years old skimmed 50thou.... my problem is that the super victor intake i have is vac leaking after the skim to match the heads,, it leaks from the bottom edge into the valley... so i assume i now need another intake and i am looking at the holley strip dominator 300-25 or the holley keith dorton 300-110.. any views on these 2 intakes,, how good are they

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Carolina Kid
Posts: 254
Joined: Sat Jul 26, 2008 10:56 am

Re: 408 sbc intake

#2 Post by Carolina Kid » Tue Aug 03, 2010 3:42 pm

carry your intake to the machine shop and have it cut to match what your heads have been cut. More than likely you would have to do this to a new intake also. If you cut the heads you must also cut the intake.

zephyrc
Posts: 24
Joined: Wed Jun 24, 2009 12:53 pm

Re: 408 sbc intake

#3 Post by zephyrc » Tue Aug 03, 2010 4:17 pm

intake was skimmed by 50 thou on the sides,, have been told to use thicker gaskets,, 120 thou instead of the 60 thou on it at the moment

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