Pickup delay comp sync'd correctly? That isn't right, I've never seen a forged piston solid motor mount car get THAT loud w/o there being an underlying motor problem (bad piston/cylinder wall clearance, beginning stages of pushing a headgasket, excessive rod bearing clearance (right before it starts making noise)...
What sort of ignition timing are you running? Have you tried a more stable leaded gasoline?
What are your IAT's like?
How knew is the motor assembly? If it is just "that loud" that is a bit scary as you won't beable to filter real knock compared to "noise".
:cry's and runs away:

__________________
-Josh
mildly modified blue 93 rt/tt-SOLD
3780lbs, pump gas 3/s. 127.08mph-92 octane.
I still tune cars!
new project, T.B.A