Originally posted by G2Integrity
I'd say the 403's are a lot more streetable than the 404's. I had the 403's untuned for a while, and it ran incredibly rich and the idle sucked and it would die sometimes. After the S-AFC, it's great. Also, if you get 403's you can run them on stock springs and retainers. They add good power, I ran a 15.1 with them.
What were you running before the cams? .. and what all other mods do you have that assisted you to the 15.1?
Thanks.