Thread: tuning and timing questions???

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2300rpm for all in timing should be fine... yes either pull the distributor and move it a tooth to give you more room to adjust (can be tricky to get the oil pump drive shaft properly aligned with the dist when you do this... you'll need a BIG flat screwdriver or an oil pump priming tool to get it aligned right)... or as I suggested before, shift the connections of your plug wires on the dist and realign to the new #1 terminal...

good luck,

-chris

Tim is correct that 2300 rpm all-in is workable.
Thing to look out for is ping at part throttle, it probably won't happen, but it can so be aware.


The 17"-18" of vacuum at 1500-2000 rpm shows that the cam is probably installed correctly.

Keep in mind that every 1000' of altitude vacuum levels at idle will drop 1".
Looks like you're probably at the 1000' altitude mark assuming your engine is in good shape.