Compressor getting really hot

ive got two viair 450s and havent had aproblem with them getiing to hotthey run great

i believe i'll be getting some viairs pretty soon. would one fill 2 3 gallon tanks or would i need 2 450s or one 450 and a bigger tank. im getting tired of having to wait 10-15 min. before i can pick the front of my truck up.

or how hard would it be to convert my a/c comp.

Why dont you guys stop being so fuckin cheap and buy a real 100% duty compressor and not have to worry about the heat.I got a blowjax 3/4 hp compressor and it does everything it claims,has fast fills and it does it all day long .I can still touch the thing most of the time.