M1 SP vs Air Gap

Don't want to steal the thread,but since everyone is talking, just a quick question. I have an LD4B and would like to use it on a 340 with x heads. I'm going to run a thermoquad. Would I be better off to run an adapter or open up the intake so the TQ can bolt direct. I'm after low to mid range torque. Also, if I port match the intake to the heads, will it be the same as an LD340?
Thanks guys.
Cant help you with the TQ fitment, but make sure the LD4B will seal to the larger heads ports.
Wow, just noticed original date on this deal, hope everyone is alive, well, and still Mopar!