question about engine kit and heads???

[hewlett2002000]

Im getting ready to build my 350 for my 66 and i have a few questions. im caught between rebuild kits and need an opinion.


one comes with... $415.08

HP350KH with Hypereutectic Pistons 350 Chevy Performance kit. We have sold these components for many years. All top quality brand name components at terrific prices!

INCLUDES
# Hasting or Sealed Power Moly Rings
# Federal Mogul flattop HYPEREUTECTIC Pistons
# Clevite Rod Brgs
# Clevite Main Brgs
# Clevite Cam Brgs
# Melling or Sealed Power Hi volume Oil Pump
# Crane Energizer Camshaft and Lifter Kit
# Cloyes TRUE Roller Timing Components
# Pioneer Frost Plugs
# Felpro Gaskets




the other comes with... $561.33

HP350KHW with Hypereutectic Pistons and Scatt crank, 350 Chevy Performance kit. We have sold these components for many years. All top quality brand name components at terrific prices!

Hastings or Seal Power Moly Rings
Federal Mogul flattop Hypereutectic Pistons
Clevite Rod Brgs
Clevite Main Brgs
Clevite Cam Brgs
Melling Hi Volume Oil Pump
Crane Energizer Cam and Lifter Kit
Cloyes True Roller Timing Components
Pioneer Steel Block Plugs
Felpro Gaskets
Scat Crankshaft (New)
Scat forged I-beam rods pressed pin #35700P (extra $159.99)




eaither way im getting this cam...

#100032 1200-4200 RPM 260/260 Adv Dur, 204/204 Dur @ .50 .427/.427 Lift 110 Lobe Separation



would there be a big performance difference between these two kits? also i have a set of heads from a early 90's chevy tbi 350 that are rebuilt. i dont think these heads would work well with eaither setup. can anyone recommend a good set of heads at a reasonable price?
thanks,
John