My car was a 85.5 so I dont know about the 83 and 84's but we could not get close.... We played with a couple different intakes a found a fair bit of restriction there but I agree that the cam is crap too and even with altered timing we got alot of pulse in the afm
[/b]
There are only two legal settings for cam timing:

1. Leave it where it ends up after milling the head (only if the timing isn't adjustable)

2. Stock

The rules allow for ajustable cam gears if origially on the car, but in that case, do not allow for anything other than stock settings.

Grafton