92 Camaro with original LB9, shorty headers, 3in exhaust (catless), HEI big cap, summit dual plane low rise intake, brawler 650 double pumper, 1/2in open spacer, 14in drop base air cleaner, engine internals are stock as far as I know.

purchased carb brand new, factory jetting is 70 and 74 and 6.5PV
base timing 10bdc with total timing at 32
idle AFR 11.8-12.3
cruise 13.8-14.6
WOT 13.2-13.8

Car runs, drives and idles pretty good, but idle is a little bit richer and WOT is a little bit leaner then I would like. Taking some fuel out at idle with the 4 corner adjustment to about 12.8 and the light throttle cruise AFR gets terribly lean but worst case I can live with the rich idle but I would like WOT to be somewhere around 12.5-12.8. From my (basic) understanding I should make a change to larger jets on the secondary’s a few sizes but from researching others posts on this forum and others I would’ve expected the factory jetting to be to large for this application. Just wanted some insight if I’m the right track or not, or maybe I’m missing something.