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Just went to 70 primarys with 11^ ( -1^ ) initial. Bog all gone and no detonation. It actually accelerates smoothly and runs what I would call good. I'll probably stuff some 72s in there and 74s out...

Ya, I think your right. After looking at the plugs I think I could fatten it up a bit more. This was after a couple of blasts but then drove normal city streets for a couple miles.
There were NOT...

Got a chance to play today (for a while at least) and changed out to the 68/72 jets. No other carb changes. 10000000000^10 X improvement. Gained at least 1in. Vacuum (about 14in) too. Idles at about...

Just an FYI. This is the Holley response to the same questions I posted;

"Yes the engine combo with the Vortec heads will need more fuel I would try 68/72 jets and see how IT reacts and if it...

Just looked and I have a set of 73s laying around. I'll take the 68s from the secondaries and flip them. Now,... if I just had bowl gaskets....

Haven't had it out much to get a good read on the...

Ran out and checked, the pump moves with every movement of the throttle. It couldn't be any more "right now". I have glass fuel bowl sights and the fuel level stays put just under 1/2 way in the...

Ok,.. Here's my setup;

350 SBC with Vortec heads (NAL 19210007) camshaft is hydraulic flat tappet with .435 in. intake lift and .460 in exhaust lift with 212 degree open duration intake and 222...