Either online or postall order bearing in mind that im based in the UK and does anybody know what kind of tightening sequence would i use because im still running standard head gasget and stretch bolts. im running a comfortable 10 psi at the mo but would like to run a minimum of 15 to 20 psi. would i need a msd or other fueling managment to run that? at the mo all i have is a cartech RRFPR.

Thanks in advance