Re: L-72 tune up
I have to agree with Rob on the LSA thing - I too tried a 'better' cam when I built my engine, and kept all else stock. I could not get that thing to idle at less than 1300+/- RPM because of the tight cam.
I then took it out, put in the stock cam that I bought from my local dealership, and was able to get the engine tuned through conventional means - with the help of others 
Now, it's a solid 14.2 @ 99MPH runner, looking to get another tenth out of it at SCR9 
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Marlin
70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride)
69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride)
67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
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