mopar or edelbrock intake?
Basicly, you want to use the engine as is, and bolt on parts to get you around 300 HP? Right?
Open air cleaner, 600 - 650 cfm carb
Performer
Crane 272/284 cam
Not porting stock heads? (Mistake) Then use small valve 360 heads.
1-5/8 headers into a "X" pipe and great flowing mufflers. 2-1/2 pipe.
The comp. ratio should be 9.0-1, mill heads to achieve.