Hello Sorry if this was a double post but the putor went BOOM. I saw the E3s also a while back,,some cars have long reach some have short reach plugs. I have seen spacers made by hand to use the mazda rotary plugs,long reach in a short reach motor(sorta like the E3s)which is a long slow process or costly. A street car wont see the difference,,maybe even at the track not much diff. I have seen guys buy 30 plugs to find 8 that were indexed proper(plug not shrouding the intake or ex. valve). I use reg plugs,,picking the correct heat range(i use lowest/coldest possible without fouling on the street)but not predetonate at the track WOT. Dont open the gap extreme and some MSD and good wires. http://www.dragstuff.com/techarticles/reading-spark-plugs.html http://www.4secondsflat.com/Spark_plug_reading.html Good luck,drive safe. Randy H.
Quoting Ronald Forsee <[EMAIL PROTECTED]>: > Hey Experts! > I'm thinking about trying a set of those new "E3" plugs in my hot rod > but they are available for 425's only. My senile mind says they will work in > my 400 but I come to the oracles for the final answer. > > > Ron Forsee > > 65-442 Orig-owner > > > > > >
