slepr1
Well-Known Member
- Local time
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- Joined
- Jul 19, 2014
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- 2,351
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- Location
- Stoney Creek, Ontario
In a recent post I read someone saying their are common issues with the M1 intake at off idle. I've been having issues with my 440 with the M1 intake. Just off idle, as I accelerate, I get a hesitation. It doesn't go away when engine is warmed up. I'm running a Holley 850DP and we tried dyno tuning it, rejetting, power valve change, even removed the power valve and bumped up the jets (to eliminate low vacuum consideration). The hesitation won't go away. I have a new Edelbrock Performer RPM I can swap and will if that's what it takes.
Is the M1 the problem?
440, stock heads with springs and valves to match 509 cam, M1, 850DP, 3000 stall, 4.30 gears, heavy car (4100lbs).
Is the M1 the problem?
440, stock heads with springs and valves to match 509 cam, M1, 850DP, 3000 stall, 4.30 gears, heavy car (4100lbs).