Well lookin to upgrade my headers since everything is tore down for a cam swap, i have a 73 k20 4 speed with straight plugs 350,no a/c. I currently have the dynomax 1 1/2 primary tube sized headers, that pretty much look like crap after about 700 miles,go figure, well anyway,looking to step up to some large tube headers that are ceramic coated and was curious who has had the best luck when it comes to diffrent header makes for the best fit! just to note i had no probs at all with the fit of the dyno headers. i have heard some ceramic coated headers and alot better made then others,thought this would be the place to ask,thanks guys!!