welcome too the web site!
yeah we need more info, like
whats the compression ratio,?
whats car/truck weight and tire diameter?
and
and as previously stated
"Do You have the camshaft profile number ?
The exact cam specs can be looked up then.
What transmission are you using ?
What rear diff gearing ?
What torque converter stall ?
Tunnel Ram is a drag race weapon.
It can be used on the street."
AND
"I’m not getting the performance I was hoping for. What did I overlook and what should be changed?"
give us some idea as to both current performance and what your trying to achieve with the engine combo,
it would also help if you let us know what your fuel pressure is, and post clear, detailed color pictures of your spark plugs ,
and what your ignition curve is set at and what are the rpm, or power band the engines operating under.
you might have a reasonable combo and just need the tuning tweaked,
but if the compression's to low,
the fuel/air ratios not both consistent and well dialed in,
or if the drive train gearing is not well matched,
if the exhaust is restrictive, or the turnings off, it won't run well.
have you recently done a compression test?
\properly adjusted the valves?
done a tune up?
checked the ignition advance curve?
lots of experienced members but we need info to base suggestions on, not guessing