Like Tree0Likes

What should spark plugs be gapped at?

Reply
Old 01-04-2005, 08:14 PM
  #1
Registered
Thread Starter
 
SledgeHammer's Avatar
 
Join Date: Jan 2002
Location: Davenport, IA
My Boats: 2001 Baja Hammer
Posts: 89
Default What should spark plugs be gapped at?

I have a 468 with Merlin iron heads, 731 Crane Cam, 9.3 to 1 compression 750 Holley, MSD ignition and Eddie Marine Exhausts. The builder put MR43T AC plugs in it and set the timing at 35 degrees. I need to replace the plugs and I am not sure what they are supposed to be gapped at. Any advice?
SledgeHammer is offline  
Reply With Quote
Old 01-04-2005, 08:25 PM
  #2
Registered
 
Crazyhorse's Avatar
 
Join Date: Jan 2001
Location: Holland MI
My Boats: 38 Cigarette flat-deck
Posts: 3,140
Default Re: What should spark plugs be gapped at?

I gap mine at .035 but you'll probably get varying opinions on this subject.
Crazyhorse is offline  
Reply With Quote
Old 01-04-2005, 10:55 PM
  #3
Platinum Member
Platinum Member
Trade Score: (1)
 
articfriends's Avatar
 
Join Date: Jun 2004
Location: Frankenmuth
My Boats: EX 99 MPH 272 Baja owner, 1999 Scarab 33 AVS NOW
Posts: 6,072
Default Re: What should spark plugs be gapped at?

.035 but with the msd and no blower you might see a slight power gain by opening them up .010 at a time,Smitty
articfriends is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Gordo
General Q & A
4
07-28-2008 05:07 PM
nordic95
General Q & A
10
09-13-2007 02:55 PM
fountainguy214
General Q & A
3
07-01-2007 11:40 PM
masi242
General Q & A
4
07-29-2006 09:55 AM
sixpak
General Q & A
5
04-21-2003 06:35 PM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 10:15 PM.


Copyright 2011 OffShoreOnly. All rights reserved.