12-11-13, 06:19 PM
Thanks for all your replies, I have already sleeved down pipe after the collector as you suggested Paul, I read your thread a few months ago and it has helped a lot and the carbs are back to std settings, but I don't think I will ever get the full mid range back without duplicating the original downpipe/collector design, I am happy to go out and buy another set of downpipes but its a lot of money if they don't make any improvement. An original genuine set in good condition would be great but I don't think I've got much chance of finding any. Maybe I will think on this for a while , and finding a local Dyno shop would also be a good idea.
Old enough to know better