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305 timing tab

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Old Dec 1, 2013 | 11:10 PM
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1991sleeper's Avatar
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Car: 1991 firebird
Engine: TBI 305 (built)
Transmission: T5
Axle/Gears: 4.10
305 timing tab

Well as some of u already know I just got the 305 rebuilt and put back in ... I used a different timing cover and a bolt on timing pointer ... Well I got to looking at the old cover and realized 0* base timing in the timing pointer is at 12 o clock on the timing cover whereas 0* on the new pointer is at roughly 1:30 ? Or so .... So I'm wondering how I can fix this problem so I know where my base timing is set at with the least amount of work ? Thanks .. The balancer has 60 degrees of timing marks and I have a timing light and can borrow a timing light with a dial from my dad if needed
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Old Dec 1, 2013 | 11:20 PM
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8t2 z-chev's Avatar
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From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: 305 timing tab

you could make a new mark on the damper to match the different timing tab -I had to do that with mine when I replaced the original damper with a 305 one I have on hand:i made a dimple with a drill to mark the "new"0*position
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Old Dec 1, 2013 | 11:23 PM
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Re: 305 timing tab

use a piston stop to find tdc and mark the balancer at 0 on the tab.
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