I'm thinking of this kit for my 468. will be using 1-3/4 by 3 headers on a 468 with 781 heads, 10:22-1 compression, crane performer 286. This is a street motor, just want a good sound, without breaking my eardrums. What's your opinions? flowmasters (http://store.summitracing.com/partdetail.asp?part=FLO%2D17119)