Ed-got a tech question
I have a tech question I'm hoping you can help me with.My engine builder just informed me he unshrouded the exhaust valve on my new dart iron eagle platinum,215,64 cc sbc heads.What will I gain if anything by unshrouding this head?I understand why he bowl blends and port match but not the unshrouding part.These heads will go on a 383 sbc on alky with a carb in my 3000lb 68 camaro.Thanks