really slow truck

would we benifit from going from ~22* timing to say 28* timing? or is 22* good enough for trucks.

if so how would you go about doing this, i know there are timing trickers but dont exactly understand how to put them in.

also, no need in worrying about cutting up your maf wires since mine have already been lopped up to put in the maft <img src="gr_stretch.gif" border="0">

thanks