With what is in my sig. would a 62/65/13 ss keep everything cool enough when towing a 13000 lb fifth wheel trailer? I was also thinking the MPI stocker over S400 but don't know if I will be able to afford it. So what temps do you guys think I will see with either of these setup and the beta 4.4?

 

If you stay with that setup the 62/65-13ss would be perfect. If you want to get even more power in the future, might as well save up and do the stocker/s400.

 

Another question, I have the plastic intercooler and no head studs. What would you guys recommend as a max boost with this combination?

 

THe head can handle 50psi before you have problems, a 62/65-13ss is set at 40-42psi from the factory. The intercooler should be good for 50psi and maybe even more, but I wouldn't try and pass 50 with it.

 

That plastic intercooler will be short lived. People upgrade them and sell the stock metal ones in the classifieds. Or you could go aftermarket but they are not cheap.

 

Plastic capped intercooler will only hold about 35 psi before getting unrealiable.

 

I just bought a stock all alum. out of a '07 for $230 shipped off ebay. It's for my truck, of cource. They were asking more, but no one bid/best offer except me. I've seen one a few months ago for $450.