"crisps" = potato chips. Aha, I had been wondering what crisps were. Thanks!
"chips" = French fries?

I have some big feeds from time to time. I usually gorge myself on meat first, then veggies and if I'm still craving I pound down the fruit. It hasn't effected me in a negative way at all.

You might be going through an adaptation period from your training and need additional nutrient support. I'll be curious to see if it manifests itself in your training in a week or so. You know like when a kid is suddenly eating like he's a bottomless pit and then goes through a growth spurt?

4600 calories today just had 1 lb of steak and 1 lb pork belly for dinner, this w.o.e rocks.  What surprised me is how easy it was to eat that quantity of meat and i'm not feeling uncomfortably full, unlike when i eat that pizza last week.

Summary:

Cals:4600
Carbs: 90 g
Protein: 281 g
Fat: 346 g

That's a normal meal for me too.

I thought I might be eating too much though, when I ate about 3lb of steak for dinner the other night and then went looking for snacks   .

well once i get back to being at home for more that 1-2 days a week that will hopefully be a normal day for me.  I was still very full this morning.

Food not so good today, had a work meeting all day that meant lunch was sandwiches and soda   and feeling the 'non-food' now.  Not bothered about it as i know this is going to happen maybe a few times a month just surprised how bad i felt within maybe 30 minutes of eating so called normal food

Yeah yesterday I ate maybe 1 kg of scotch fillets, about 500g of mince, then made a pork roast and ate most of the crackling before it even got to the table for everyone else. Then ate the rest of the roast

Fruit and nuts liberally in between.

Important to note though that I am actively trying to put on weight, and lifting ALOT in short explosive bursts. Honestly it feels like I burn more in 15 min than I would in 2 hours of running/jogging.

One of the ways you know you're adjusting to paleo is when you start noticing prompt bad reactions to so called normal food.

With regard to building muscle, you probably want some resistance/strength training for that.  The body doesn't generally put on muscle unless it thinks it needs it.  Granted you don't have to spend a lot of time on it on paleo.

Body craving food again, had a big meal of ~2lbs of pork this afternoon and i've just worked my way through a pound of lambs chops i'd cooked to eat tomorrow as i felt hungry again.