Rob, not questioning your experience or lack of driving skills on other types of engine packages. But there is a difference with the 4 cycle thing, and it does take a while to get caught up with the fast guys, to the point it makes you question the chassis, driver, engine, carb, etc.
Did you just start 4 cycles?
Were you already fast with this kart/engine package at some point, and just recently started noticing you are slower now?
Please don’t be offended, but this will help narrow it down.
I’m still trying to figure it out myself, as this driving style is a bit more sensitive, and requires to minimize turning effort.
If you were already fast running with the front guys, and recently you’re losing speed, then yes, you may have an issue there, and you can ignore my questions. Hope this helps.