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Pull the valve covers and observe how much each rocker opens and closes the valve. All the intakes will be the same, all the exhuasts will be the same. A crude way is get a fine ruler. Spin the motor without spark plugs. If a lobe is wiped you'll know.
I had a noise in the motor, ended up being a broken chain tensioner.
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89 TTA Stock appearing 
10.550 at 132.22 1.539 60ft 3850 race weight w/driver
Always on 93 octane
www.alkycontrol.com
727-570-9999
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