[Rick Parker]

Jack:

A lot of good information being shared on this thread. You might want to consider checking the port matching between the intake manifold and cylinder head face. If there is any significant mismatch, turbulance could be created causing a roadblock to further performance gains. When you begin to combine parts such as this careful attention to detail is critical. Refer to the success of the Boss 302 which was an effort to overcome the failed tunnelport 302 effort in early Trans Am racing.

Just a thought

Rick