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#7
01-03-2005, 04:25 PM
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Re: Making the change: 2BBL to 4BBL
If you're gonna change to a 4 bbl, do a cam swap as well. Otherwise the gains will be minimal like Kurt said. Even with another cam, the heads are probably limiting the potential with small valves. So do the cam, heads and 4 bbl. Or do nothing(it's cheaper). I would look at the ignition system as the best place to pick up some performance.
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69 Z28 JL8, #'s match - being restored 
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