Dude im driving myself insane here, ive been trying to time my piece for a week now with no avail, i took it to the perf shop and they timed it, but there was a misfire in one cylinder, so my genious of a father thought it needed to be retimed, he changed it and its out of whack again, i tried to set it back but no luck. With these specs what would you set the timing at, and how does the base timing work, do i set the timing with the wire un plugged, and then plug it back in, and re-set it for advanced timing? Oh and by changing the timing, do i need to reset all my sesnsors like base idle, and TPS ?

here's the specs:

355 .030 over 9.1 compression
AFR 195 heads
Comp Camps roller grind for blower specs:
276 intake
290 exhaust
220 at .050
230 at .050
510 intake with 1.5 rocker
510 exhaust with 1.5 rocker
114 lobe
Crane aluminum rockers 1.6 ratio
TRW blower pistons
Total seal rings
Eagle Sir Rods 5.7
GM 1053 steel crank

So what would you set the base timing at, and how does base/advanced timing work, do i need to reset the sensors..... thanks in advance

 

I don't know about sensors, but the cam timing works like this:

Advanced timing closes the intake valve earlier allowing more compression to take place and generally adds more low end torque. Retarded timing leaves the intake valve open longer lowering compression which is good on high comp engines and leaves the exhaust valve open longer which lets it scavenge better and results in higher HP. Cam timing generally moves the torque curve lower or higher in the RPM range.

A trick in circle track racing is to use a low tension timing belt and set it advanced. At low RPM it is pretty torquey. As the engine accelerates, the belt stretches and retards cam timing helping the engine breathe at high RPM. VVT before it existed.

 

well the easyest way to get the most power out of it is advance the timing untill it pings under load and then back it off a little. as far as base timming it is when you unplug the set timming conector and there is advance by the computer. this is how you would set it to a certin degre.

 

oh yeh and as far as the sensors I belive you should be alright unless your having a problem with your idle. there should be no reason to adjust your min. air adj. and if you don't touch that the tps should be fine also. well hope this helps