hmm..intermittant ? Well first thing I'd do is verify TDC on balancer . YOur intake valve opening is of no concern , unless you are degreeing a cam . Once TDC is verified . Check ignition timing , watch it, does it change as engine idle goes into it's fits? If so check dist bushings. I have seen some valve adjustment problems on these . If you are on the edge of the adjustment limit it may be hanging a valve open slightly , would account for low vacuum and rough idle . 16 inches depending on the cam is not out really terrible . But if it's all stock, could be higher . I've raced small blocks for years,if it was here in shop I'd have it figured out in less than a six pack ! lol What year is this motor ?
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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