I have intitial timing at about 14 btdc and total advance at about 38. But I have no idea if he actually checked his timing marks when he put this thing together. As for the vacuum being low, must be the cam. No vac. leaks and signal is steady. He can't tell me much about the cam other than it is a 284 adv. dur. I don't think he is even sure. Someone built this car for him.
It sure is lumpy for a 284. It idles rougher than a 292/548 that I had in a sb Chev years ago. The car seems really flat until about 3000 and it pulls hard all the way to 7000. I didn't take it any higher than that. Anyway, it seems to be fine now.
I did jet it down some using the plugged power valve up a hill method.
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