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Forum: Hot Heads Tech Talk Forums->Hot Heads Tech Talk->Which Ignition [prev topic | next topic] gerrymoe Which Ignition Have a 392 with a 671 blower running 4-6 lbs of boost, have a joe hunt electronic rewired to run a msd 6 ignition control. My question is which one would be better for the street driven blower, a msd 6-al or the msd 6-btm, the difference between the two is the btm allows you to retard the ignition timing 1-3 degrees per lb of boost ? There is a big difference in cost between the two and if the 6-al would do for the street it would help my pocket book which is getting mighty lean. All input is appreciated.   on: Tue 02 of Sep, 2008 [00:32 UTC] reads: 24350 Posted messages Messages 10 20 30 All Style Plain Threaded Headers Only Sort Newest first Oldest first Score Threshold All 0 1 2 3 4 Find Top author message mthemi Re: Which Ignition on: Wed 03 of Sep, 2008 [02:35 UTC] score: 0.00 I am running the BTM, makes me feel better to pull back a little timing, and still cheaper than the intake, blower, ets when you blow the top off author message gerrymoe Re: Re: Which Ignition on: Wed 03 of Sep, 2008 [03:59 UTC] score: 0.00 mthemi What boost are you running and what setting do you run the retard control at Page: 1/1 Show posts: All posts Last hour Last 24 hours Last 48 hours

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