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Old 02-25-2018, 01:20 PM
73 bird 73 bird is offline
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Join Date: Oct 2011
Location: Rock Hill, South Carolina
Posts: 67
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Changed cap a while back. Still does it.
Drove it for about an hour yesterday. No problems. Opened the cap about 5 hours later and it's still under pressure. Left the cap off all night. Still have tiny bubbles coming up in the radiator this morning.

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73 firebird 455 6x-4 heads 350 turbo 3.73 gears
1/8 7.65 @ 90.95
1/4 11.96 @ 112.60

new best in 1/8th 7.57@91 mph(4-13-12)