i need help disading

[mk3supraoz]

hi i just wanted to know, whats the difference between the arp head studs and head bolts which will work better to hold 400~450 whp. and do i need new fuel clips to fit my rc 550cc fuel injectors or will the stock ones work.

 

[steve_mk3]

1-studs are better
2- yes you will need new clips