Thread: LT1 tuning help
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Old 10-28-2016, 01:33 PM   #8
cmracing
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Default Re: LT1 tuning help

Quote:
Originally Posted by Darrel Goheen View Post
Thanks Jon, I just discovered what I think will make a huge difference. One of the 3/8'' vacuum lines was off of one of the PCV valves. It has a newer MSD Opti Sparks on it. I got a spare too. Optispark doesn't seem to be one of GM's better ideas.
I think an ex-FORD engineer designed the Optijunk system!

And for what it's worth, toss the Holley 950 and put a Holley HP setup in there.
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