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#1
07-17-2006, 06:29 AM
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Re: Using rectangular port intakes on oval port heads
This is an interesting topic since the 70 L78 I just got has the stock rectangular port intake with oval port heads. I thought it would be a terrible mismatch, but the car seems to run incredibly strong and doesn't seem to mind the mismatch. I have the correct rectangular port heads to go on it, but it might be better off with the slightly lower compression oval ports for now.
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69 Z28 JL8, #'s match - being restored 
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#2
07-17-2006, 06:48 AM
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Re: Using rectangular port intakes on oval port heads
My 69 Camaro COPO clone runs this above combo of oval heads and 163 intake. Car cruises and drives fine. Notice Eric Jackson carb............
 
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Chuck Sharin [email protected] Auburn,WA (30 miles South of Seattle) 70 Camaro R/S Z-28, L-78, R/S SS 69 Camaro COPO "recreation"
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#3
07-17-2006, 06:56 AM
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Re: Using rectangular port intakes on oval port heads
Next motor I build is going to have that combo. Strong bottom end with maybe 10.5 to 1, L78 cam, 163 intake, oval port heads. Add a little gear and 4 speed and watch out! I think if you have a good set of heads that have some mild work done you can probably pull real strong to almost 6,000rpm. That's enough on the street...
wilma
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02 Berger 380hp #95 Lots of L78 Novas Join National Nostalgic Nova! 70 Orange Cooler 69 Camaro
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