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Thanks for all the replies guys and I’m sorry for my late reply, but couldn’t sign in for 2 days. Then reset my router....
Sadly, I don’t have the secondary adjustment externally as hoped. Thanks all for the info on the transfer slot exposure, which I just about get. Just not sure how I adjust the secondary throttle plate opening. But I guess that will be revealed.
But here’s the thing. Like I said, on idle, intake manifold vac is 9”. But when I rev, it rises to about 15”, which must be due to the far from standard, cam profile, right? The PV is 6.5 and the PJ’s are 72’s, with SJ’s 83’s.
As stated the problem is rich idle and bucking on take off and overrun. Some have said go to a lower number power valve, but surely that going to open even earlier. I’m thinking, maybe I need to go up to a 8.5 or 9.5 PV and also order some smaller jets, 55-70 for the primaries. What do you gurus think?
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