larger duration cams will work with stock ECU up to 264 or 272 duration, depending who you talk to(wadeapparrently say 280!). you can get that kind of duration to suit stock lifts i believe so the springs and port and polish arent really necessary. reshims i notice are likely necessary tho.
anything more than that and you WILL need a new ecu, or at the very least a piggyback to alter fueling. once you start going the wilder cams (prolly 280 and up) then you might find some benefit in the springs and p&p work, but with a stock ecu just stick to what cams you can afford and leave it at that...
Wed, 16 March 2005 09:14
