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69 firebird was 455, 4 speed, (budget) now LS-Lm7 5.3 gm swap
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09-23-2018, 04:55 PM
69FIREBIRD76MM
Ultimate Warrior
Join Date: Nov 2010
Location: so. cal
Posts: 1,185
That 5.3 with springs and .587" lift cam will run high 12's all day long, I couldn't believe it, Never had a chance to run it on the track with the turbo but was expecting high 10's,
Now will see how it runs with the 6.0.
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