Spitfire headers

I've been running Spitfire headers on my Cuda for at least the last 15 years! I got one of the first sets from Harold, my racing friend allowed Harold to use her car as the test bed while he was working out the kinks! I paid $188 shipped and got them in about 3 days! Harold wasn't located in Washington state, as I recall he was somewhere in Kentucky! Anyway, they flow pretty well, not sure they could handle the HP flow requirements of a striker motor, but they'll be going on my hot 340