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It runs fine at idle and up to around 2800, then issues start, so I would look at secondaries. F-2 has a good point with the boxes
What carb model? |
Originally Posted by AllDodge
(Post 4675772)
It runs fine at idle and up to around 2800, then issues start, so I would look at secondaries. F-2 has a good point with the boxes
What carb model? |
What kind of AFR's are you seeing at WOT, I figured you were running dominators with 600 inch engines
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Originally Posted by F-2 Speedy
(Post 4675783)
What kind of AFR's are you seeing at WOT, I figured you were running dominators with 600 inch engines
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Swapping boxes might be the easiest, but wonder if a carb swap would fix
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Your on the right track with switching boxes, dist, carbs, etc. Sounds like your not seeeing any advance and or starving for fuel. I think you have a few of us curious as to what exactly your builds are. Btw ck the linkage over on carb including the secondary cam that operates the accelerator pump. Open up at WOT and look down inside as you do it. Surprised 850's on 600 ci but certainly not the issue. Did boat sit with fuel in for any length of time or possible got water in tank/tanks. Totally non related but what intakes and cams? Your problem will be fixed quickly I'm prettty certain of that. Don't forget the dist swap also if there's anything left under the cap. |
Originally Posted by getrdunn
(Post 4675799)
Your on the right track with switching boxes, dist, carbs, etc. Sounds like your not seeeing any advance and or starving for fuel. I think you have a few of us curious as to what exactly your builds are. Btw ck the linkage over on carb including the secondary cam that operates the accelerator pump. Open up at WOT and look down inside as you do it. Surprised 850's on 600 ci but certainly not the issue. Did boat sit with fuel in for any length of time or possible got water in tank/tanks. Totally non related but what intakes and cams? Your problem will be fixed quickly I'm prettty certain of that. Don't forget the dist swap also if there's anything left under the cap. I had just filed the tanks and they were very low on fuel as I was about to do a poker run. The thing is about the gas is the other motor has been fine and both motors ran pretty hard for about 30 min on the new fuel. Then the next day after a long idle to start the poker run is when this all started. I forget exactly what intakes I have Dart as I recall. Cant tell you the cam. These were built by Goodwin performance in WI. The guy that built the engines in pure platinumII |
long idle on 7 yr old plugs, you may have some fouled out, the plugs need to be changed in both engines
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Originally Posted by drpete3
(Post 4675804)
Don't forget the dist swap also if there's anything left under the cap. Im not sure what you mean here.
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Originally Posted by phragle
(Post 4675838)
MSD distributors have a bad habit of corroding badly under the cap.
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