I found the 1 5/8" 0.083 wall cm for 4.67 a foot.
Got all the hydraulics in for the tubing bender and some scrap cm from my friend to practice my welds and find the right setting.
This is my first time to weld cm, but it welds very simular to stainless and the weld color is gold
like the stainless. Using ER70S2 rod.
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87 gn, Champion heads, 4 billet caps and a girdle. Turbonetics T66 4 bolt with custom 4" downpipe , FAST B/B W/WB02, PTE 210 roller cam, th400 w/trans brake. 525 RWHP @21 psi on a mustang dyno.
Current best et 1.465 60',4.176 @83.33 330', 6.455@105.81 1/8 mile.
http://www.youtube.com/watch?v=OXNeK7HIYNY
In process of SBC turbo build with 76mm Turbo