No subject

ignition timing is probably more related to the position of the piston 
in the cylinder, than the state of the intake/exhaust valves.

My $0.02,

Ken

Beatty, Robert BeattyR at ummhc.org wrote:
> 
> Wont this interfere with the ECU's correct control of the
> mixture/spark timing?  This is on a 5ktq not on a N/A 5cyl car.
> 
> Rob
> 
> -----Original Message-----
> From: GMBCHEF at aol.com [mailto:GMBCHEF at aol.com]
> 
> Try 6-9 degrees first, then go down to 3 and try to find something in
> between that works good for you. Remember your engine is an
> interference engine, so you have to be careful of that. I have mine
> set at 3-1/2 degrees retarded on
> 
> my 4kq cause the head is shaved so much. Also, when you move cam
> timing, your only moving the powerband, not increasing it. HTH Gary