Hello! I have a stroked 440 in my '70 Challenger. I have Indy EZ heads with TTI headers. EZ's have angled plugs. I use FireCore 50 wires on mine. No issues at all. Ck out
www.customwiresets.com. These guys are great to work with. Nice price too! Jeff
p.s. Forgot to say, these are the same set I used with the stock engine in the car. Meaning, stock heads, manifolds etc. Works fine with the headers now.
