cooling issues-need help!!

i have had it running about a month now i guess, and if i drive it more than a few minutes, even let it idle for a few minutes actually, pretty much everything gets too hot to the touch. i haven't gotten an aftermarket gauge yet, but my stock gauge is in the normal range after i replaced the radiator, yet the rest of the engine remains hot. here is a list of what i have and also what i have done to try to fix it:

1968 302 +.03, flat tops, 290/300 advertised duration-214/224 @.05 .507/.533 total lift with 1.72 roller rockers TFS twisted wedge heads and using all tfs recommended gaskets offy 360* intake 650 holley dblpmp ceramic coated headers through 2 1/2 pipes and turbo mufflers-no cats new radiator, electric fan set to start at 180* and i took the thermostat out shortly before replacing the radiator hoping that would help. since i put the engine together a few years ago, and have just now got it running, i did some research on cooling with the tfs heads. when installing on 1968-72? 302s, you would have to drill 4 holes on either side of the block into the water jackets to prevent steam pockets, and i have done this. pulled my heads off tonight because i couldnt remember if i did or not. i have also read in another post about a ground wire problem, but it was a cadillac recall in the 80s. could this possibly contribute since i am grounding directly to aluminum heads? when i filled it with 50/50 coolant, i did run it through to try to remove any air pockets that could form before i sealed it up. i am still running a stock pump, which was new when i put it together, and it did flow while i had the cap off to vent the air pockets. i did find that the new rad cap was junk-it was seeping over the top seal, so i got a new cap today also. i have run the short block before with ported 289 heads and 1.6 rockers with no problems like this before. anyone have any suggestions or comments that might shed some light as i am tired of burning my knuckles?

thermostat is going back in, and the temp gauge is here, just needs put in. i am thinking all i had to do is sleep on it.....the old 289 heads didnt have open egr ports and the tfs heads do. im thinking if i closed them off, since i dont have the egr valve anyways, that could cure it. and i will take the ground straight to the block somewhere just to eliminate that issue from arising.

oh yeah, and the head gaskets were orientated correctly....but does anyone know why there is only a small hole in the bottom jacket and no hole in the top jacket on the front side of the gasket? the holes are there in both the block and the heads (as they should to be interchangeable). is it the path of least resistance theory again, to allow the coolant to get to the rear of the head?

sorry, it isnt the egr...thats what i get for thinking in the morning just the exhaust crossover im going to plug it off....if it does anything bad, which it shouldnt since i ran the 289 heads without it, i can always remove the plug.

i got it up and running again this morning. i plugged off the crossovers and installed a 160* thermostat. after letting her idle about 5 minutes, she got to about 195* and stayed there, but the oil cap and breather are still hot to the touch. since i have never run aluminum heads before, is this more normal than iron heads, or should i look into maybe getting an oil cooler? i just cant believe that the caps should be getting that hot....