99.9percenter

iTrader: (2)

Would a 106mm single work good or would I have more fun with a couple of 88mm's? It is a bigblock dually.

nightrunner

iTrader: (4)

is this a 8.1L or a 99-older model truck

if its a 8.1L your motor stock cant handle the boost ... you'll blow a few pistons ask tierod

now i dont know about the 454s

a 106 mm is going to have a considerable amount of lag i would think twin 88s would be better

99.9percenter

iTrader: (2)

Fully forged,dart 345cc iron heads, just don't want to detonate when pulling my race car up mountians in 110 F heat with the ac on. Running flat out unloaded with the boost turned up is the easy part.

nightrunner

iTrader: (4)

id go with twins they have less lag and the same high end power

FMOS Racing

I think a single 88 mm will bbe just fine. You pick the turbo based on the power level, not the displacement. Pick the turbine side based on displacement. A T06 flange T88 can make enough power to smoke your driveline.