Found a set of DOOE heads in my dads garage, I know they came off a 351W. But that is about it. How do they compare to the GT-40 heads. also, I have been having a pissing contest with a guy about headers. I have long tube headers on my stock 302 heads, if i use the D00E heads they will work right? The Gt-40 heads require a different header correct? Hope i didn't confuse anyone.