Just remember almost any header is better than a cast iron factory exhaust manifold . Those do look nice but would be much better with some longer runner to get the gasses some time to get put of the heads . Looks like as soon as the gasses come out of the exhaust ports they run right into all the other gasses from the other exhaust and then into a holding chamber then they all have to fight to get out of that small tube . Looks nice but poor design . Needs longer tubes to relieve all that pressure . Just my opinion . Retro Jim
The Jalopy Journal
