07-12-2011, 06:35 AM
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CC Member
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Join Date: Jun 2006
Location: wellington,
oh
Cobra Make, Engine: BDR #260 w/ 347 stroker, Canfield 195 cc heads, prosystems carb on a VicJr, Comp roller cam
Posts: 228
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Not Ranked
MSD 6AL question
drove my Backdraft to the GoodGuy's show in Columbus this past weekend. On the way back stopped for fuel, turned off engine, fueled up, got back on the freeway...then the engine started to stumble in 5th gear with some throttle input. (this is a 302 FMS crate with a t5 0.062 ration 5th with 3.91 diff. about 1900rpm's @60mph) It also sounded a bit different. 50 miles later, was off the freeway and it seemed to pull OK thru the gears, but still stumbled in 5th. Well...the only thing that changes was the gas...bad gas?  The next day took the car for a drive ant it was back to normal 5th gear performance.  So...it not the gas. can MSD boxes get too hot and act like this? I had to replace one a year ago. Its mounted under the dash of the car and it was about 90 degrees that day. I did feel the box, it was warm, but the MSD people said they run warm. Anybody seen this issue before with MSD? 
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BDR#260...21.6K miles logged as of 4/2018 
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