Im having problems with my cossie head lifting,its running a T35 at approx 26 psi (410 bhp) runs lovely but on a recent track day overheated .I know its the head lifting when driven hard for long periods,ive just bought an ARP stud and nut kit ,not used them before are
they a waste of time ,should i just go for the proper long stud conversion or will they hold head down ,boost peaks at 29 holds 26 psi.. your experiences and advice are welcome..