Ron & Terry,
Thanks for the reply.
I've heard of several the Cobra guys speak about losing
pistons and rods thru the side of the block with the FMS 392.
I haven't heard of any cranks letting go yet.
Been thinking very seriously about this upgrade.I had rather deal with it before it breaks.
I'd like to beable to lean on it and not be wondering if this is the time it blows up.
With 5k miles,at most it would be bored to 4.04
From researching this great website I find that is okay.
I have 1 3/4" primary tubes going to a 3" diameter Hooker merger collecter.The mufflers are Dynomax bullet racing with a 3" core.
This were just built and installed last november.I would like to make them work with the 408 or 418.
It seems like the AFR 205's with a new header flange would work. The 225's with the bigger ports seems to need 2" primary tubes (???). Really need advise in this area too.
With both the 408 and 418 having forged everything,
what would make you choice one over the other ???
THANKS