Chris' tune was underachieving 'cause with 345/325 from Adam's tune, you now have the power your engine should have been making with your mods. Adding a set of underdrive pulleys would get you over the 350rwhp mark.
Can you post your dyno graph?
Where are you getting these numbers from? I think im gonna do a throttle body eith an intake manifold. I dont know if im ready to drop 15rwtq tho lolAn FRPP intake manifold will get you up to ~358rwhp with peak TQ remaining ~325lbft at 5200rpm. However, you'll lose up to ~15rwtq in the 3300-5200rpm range and your torque curve will look something like the attachment (red line).
If you install underdrive pulleys, you'll still have over 350rwhp but there'll be NO loss of TQ anywhere in the rpm range.
In that case i would need more gear to stay up in thebpowerband. Cause the 373s i have now are still very long.All the dyno tests of the FRPP manifold that I've seen follow a similar pattern. No surprise really as the shorter runners of the FRPP manifold favor high rpm breathing while the stock manifold with CMDPs is strongest in the upper midrange, with a typical "double hump" in the TQ curve at ~4400 and ~5200rpm respectively.