You should be able to get that lifter back in without removing the manifold. After cam runin, i usually SUCK a few out with a magnet for a quick look. Bit tricky, but not too bad.
You may also want to keep those gears when using gas with the mph you will run.
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408 cube Cleveland
TFC @ AFD 2V, 750 DP
10.7 @ 125 mph
2V powahhhhh
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