diesel dakota

Most of my issues are with the idle, I posted most of those issues in another thread about my power fc idle issues.

Another issue is it has developed a hesitation under 3000 rpm, the lower the rpm the worse the issue, cruising is fine but if I get into the throttle, it falls on its face and seems not to do anything for a few revolutions. It does this very easily at 2000 and at upper 2800 it take alot harder throttle to get it to do it, I basically have to pin it in the high 2000's to get it to do it but lower it takes very little.

Also after a hard pull sometime it'll dump smoke, whitewash smoke maybe a bit blue, not a ton but very noticeable. It tends to do it of I keep it in gear after release without throttle or if I clutch in with no throttle, it doesn't seem to do it if I keep in gear and on the throttle. There's also usually about a second delay from throttle off to smoke starts. Any ideas? Sticking secondary maybe?

I'm premixed non sequentials with pretty much everything deleted that can be