Cooling Issues, HELP!

[chipmonk]

so i go to get tuned on e85 for the first time. i have a whipple 2.3 with a 2.5 upper and stock lower. At this point there are no issues with the cooling system. My upper pulley explodes on the dyno and blows a hole in my radiator. i leave the car there over night to get a radiator put in. when i get the car back i am now tuned on my 2.75 upper and stock lower(2.5=21-22psi, 2.75=17-18psi). it is having problems spitting coolant out of the reservoir. i have burped the system and replaced the cap. There may still be air in it but he should have burped the system pretty good when he replaced the radiator. i am no on a 2.75 upper and a 6lb lower making 24psi. my tuner says my heads are lifting off under boost but it just seems like too big of a coincidence with it starting to spit coolant right after i get a radiator put in. What do you guys think?

 

[01cobravortech]

Oh so your tuner is openly admitting that his tune is causing your motor to detonate and lift the heads...

He may not have properly burped it.

 

[chipmonk]

it may still have air in it but i have burped it a couple times and it still puts out air when burping it.

 

[chipmonk]

im gunna replace my coolant expansion tank and my cap to see if that helps. my tuner said he got the radiator from ford but it was a little bit thinner from the one he pulled out. could the radiator be the problem?