Looking for credible info regarding the procedure, whp, mpg, etc. Have found some references from various resources, but mostly subjective opinions, no dynos, no data... I would appreciate first hand impressions including any difficulties, issues, costs. Is it really worth the effort if done all alone, eg. without exhaust upgrade? What gains can I expect? Thanx in advance.

 

Maybe I just put it in the wrong subforum? It's not really an engine swap, just a manifold, please admin move it elsewhere... Somebody must've analized the mod, but I can't find any data...: