Quick (long version!) update on things. With the 10.5" PV installed, doing calculations and settling on jet selection (73 primary, 83 secondary) with ootb 31/35 clusters and 1st hole pink cams, fixed .052" PVCR) I now have it in the ballpark better than previously. Idles good in park, gear, revs crisp and quick, vacuum 14"/10" respectively, a/f readings low/mid 13's (which I can tweak further) with easy primary only running up the rpm's with no pump shot and cruising up to over 3000 rpm readings from upper 13's up to a few ticks over 15. Heavy primary acceleration with the PV opening drops it to upper 12's (and it pulls stronger much better than before, WOW would be the best description . And then just doing some WOT runs the response etc is just as good, Upper 12's on gauge. Only niggle is the slight lean hesitation at tip-in, will try pump shot, look at the feed/bleed tuning. Still more to tweak, but I "could" live with it as is! Running the 10.5" with my 18" +/-cruise vacuum readings....WOW.:thumbsup:
