I am having some cooling issues mainly at idle. Let me give you guys some info. It's a sbe lsa with Frankenstein boost monster heads and a Kong 2650. It had a custom grind Martin Smallwood cam. He spec'd it for me when i was running a max ported lsa blower the cam has about .7 overlap. Over the winter I added a Kong 2650 and a Vadder hx. Due to the minimal overlap on the cam the Kong I feel was making to much boost. With a 9.17/3.5 I was making 18.6 lbs at 6500. That is where I stopped making pulls was going to wait till I got the new cam. The new cam has more overlap for the Kong blower. Before I pulled it apart I was noticing my idle temps were getting a little warm around 212-217. This was also the first week that the ambient temps outside where getting a little hot in the 90s. Before if I let it sit and idle for 10-15 minutes before the Vadder and Kong it would never get above 185. When I tore it apart for the cam swap I swapped a new water pump even if mine was not leaking. I also bought a new 160 thermostat checked the old one in a pot of boiling water and it opened around the 165 temp with my temp gun. My tune is conservative; I am running 14.5 degrees on 18.6 lbs of boost on twin meth nozzles with 100% m1 on pump 93.My question is do you guys think its a radiator problem or a head gasket problem? I am running ls9 gaskets with arp 2000 lsa head studs. I am leaning towards radiator problem but not sure. I might have a bad spot in on a head gasket even though i have checked my combustion in the cooling system with a combustion checker and it was fine. Thoughts?