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LYNRDSKYNRD
06-03-2009, 10:53 AM
I have a 87 PS190 Indmar 351 with electronic ignition. Which spark plugs do I need and what gap. The manual that came with the boat is for PCM engine.

flipper
06-03-2009, 10:56 AM
Are you sure you have a 351, not a 350?

BrianM
06-03-2009, 10:59 AM
TBI
AC MR43T gaped at .045"

LT1 (aluminum heads)
AC MRT43LTS gapped .045"

LYNRDSKYNRD
06-03-2009, 11:10 AM
Sorry guys--I meant a 1987 PS 190 I guess I was trying to upgrade:D I corrected the original post.

TMCNo1
06-03-2009, 11:14 AM
Sorry guys--I meant a 1987 PS 190 I guess I was trying to upgrade:D I corrected the original post.
http://www.skidim.com/prodinfo.asp?number=RP030002,
SPARK PLUG KIT FORD 302/351 Autolite #24 (http://www.skidim.com/prodinfo.asp?number=RP030002)
STANDARD ENGINES 240/250 HP (Includes 8) Prestolite & Mallory Distributors Plug gap .035"

flipper
06-03-2009, 11:18 AM
Sorry guys--I meant a 1987 PS 190 I guess I was trying to upgrade:D I corrected the original post.

ahh, that makes more sense:rolleyes:

LYNRDSKYNRD
06-03-2009, 11:27 AM
Thanks guys I appreciate it.