Rick, who are you?
Ive not idea to be honest mate.

Ive built loads of A series, and i call them gay with good reason, ive spent 2 grand this week on my cossie and it will be about 330bhp and reliable, when i spent two grand on an a series i'm lucky to get a reliable 100bhp

Old technology has its limits sadly.

Hence im building up this 500bhp calibra turbo engine i have for my latest mini.