Originally Posted By CoDart
My question is can I use the vacuum advanced for cruising? How I see it is when under normal driving conditions the vacuum advanced will function but under boost since there will be no engine vacuum that will cut off the signal to the distributor. Also I could install a one way check valve so boost doesnt enter the vacuum pod. Am I right? Im also running a MSD boost retard box as well.
Thanks!


You don't make boost at cruise, or you shouldn't be anyway. So that should not affect using vacuum advance for cruise.

I would probably want to make sure that if I put a check valve in that it would not keep vacuum in the advance can when it closed. Probably won't, but check.

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