Big Cam No Vacuum

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It was not in gear. The numbers I quoted are from memory from last summer when I really wasn't really fooling with the vacuum. (I was busy getting rid of a noisy el. fuel pump). I have the car put up for the winter right now so I can't go out and start it. Here in Minnesota it was 30 below last week so we tend to put them away for the winter.... When you say you set your RPM at 850-900 is that in gear? Also. since I really wasn't paying attention when I took the vacuum test last summer I did not check for any leaks. I guess it could be that I have a leak somewhere?... Thanks for all your input.

Also, I am running the chrome one from Sumitt.

My RPM in gear is 850-900. I find with my setup it runs best there. Hit's hard. Engine likes a little more idle with my cam.

You might have a leak. But for right now no point in worrying about it if you can't look at it. What I would do when you get the weather. Is get it running and warmed up. Check initial timing. Check vacuum. And go from there.