Quote:
Originally Posted by Jimbobeast
My stock 1970 RA IV is producing 11" of vacuum at 850 RPM idle, dwell 30, initial advance 15. That vacuum seems a little low to me but the engine does make a nice lopey sound at idle. Is that manifold vacuum acceptable? I'm not able to drive the car yet.
Thanks,
Jimbo
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11-12 inches of vacuum is exactly what my 69 400 with 041 cam produced at idle.