what is your timing at now? if its no higher than 14-15deg, then leave it be with the 50shot.
But trust me you WILL get greedy with it and up it to 75 in no time flat
oh yah, and stock plugs are also fine with only a 50shot
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NMRA O/C 9516
NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft
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