I just finished doing to beanbox mod and upped the carb jets to 122\ /118 Pilot @ 42 AF 2.5 out , needles shimmed with 2 shims, carbs are super clean.
Cranking the throttle on acceleration, example would be passing a car or getting on the hwy, so 3/4 to WOT I get good pull -- FLAT-- GOOD pull.. I have no tach, but I think it's 0-2000 Good - 2000-3000 flat , 3000+ good.
Slide is not drilled, stock springs are in place, no tears or holes in the slide boots..
It's almost like I am having a vacuum leak somewhere, no idea where it would be, all the lines look good..
Plugs look nicely brown, not lean, not rich.. i'm about to swap out my vacuum lines as my next option.. anyone have any insight?