Spark Plug Gap for HP500?
06-21-2012, 05:37 PM
#1
Platinum Member
Spark Plug Gap for HP500?
Does anyone know what the gap should be for 1999 HP500 carb engines? I just bought Denso Iridium plugs and want to get this right.
Thanks!
Thanks!
Last edited by 242LS; 06-21-2012 at 05:43 PM. Reason: Typo
06-21-2012, 09:31 PM
#6
I figured they came pre-gapped. I was talking to I'CE today and he asked me what the gap was supposed to be - got me thinking. It turns out they were all at 0.35 already.
Now I have new plugs, wires, distributor caps and rotors. Looking for lost RPMs.
Now I have new plugs, wires, distributor caps and rotors. Looking for lost RPMs.
Last edited by 242LS; 06-21-2012 at 09:31 PM. Reason: Auto-incorrect
07-21-2012, 01:44 PM
#7
Registered
thunderbolt IV and V found spec. @ .040 and sterndrives.com has spec @ .030 what gives ?
Last edited by I'CE; 07-21-2012 at 02:15 PM.
07-21-2012, 08:03 PM
#8
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