Engine problems

[psyguy]

it cannot be the coils prob as the coils work in pairs (1-4 and 2-3)
however, it can be the wires / plug caps / plugs

[tkent02]

I think I've got a huge problem......

Any comments.....

The huge problem here is that you are not troubleshooting.
The two cylinders that are not heating up are not firing.
Find out why, then go through every engine adjustment and get them all correct.
Your mechanic knows nothing if he thinks he can say it's not the carbs just because he went through them a year ago, he just wants more of your money....
Coils, shmoils.