Quote: I made the manifolds myself from a set of big block a-body fender well headers, not much left . The Turbos are T3/t4.
GoGreen, I think the extraordinarily short distance from the head to the end of the downpipe is what makes it loud, plus it is idling around 1200. give or take. you have long tube headers leading to your turbos, then the downpipes reach all the way back to the firewall. my turbos are 6" from the exhaust port and the downpipes are only 18" long. I haven't gotten enough boost to see if the wastegates work. I have 8lb springs and I've only achieved 6lbs so far. the blow off valve certainly works
Looks good... what do you plan on HP wise... dont you feel that the T3/T4 are small for your CI... I have a pair of them also that I was/am going to put on a SB with 395 ci... I'm just asking because I dont know.... hurry up and get it on the road, I'm curious to hear about your out come
. The Turbos are T3/t4. 
