Hello there was wondering if anyone could help me as I am wanting to make my 90 faster & wanting alot black smoke from the exhaust. I've heard something about altering the fuel pump does anyone know how I can do this or any other ideas ?
Shows you the basics of pump tuning. A larger, updated intercooler will help. Presumably you're after a bit of smoke if you boot it as a sign you're getting enough fuel? Otherwise, nobody really wants black smoke by choice!