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Re: 305 Questions
The "601" head is also a good choice. It's the "305HO" head. Due to the bore size, using a head with an intake valve larger than 1.84" will yeild less performance than the stock valve size. Since your desire is for more low-end power, the smaller runners of the 305 heads are also desired. The Vortecs, while great performance heads, are a little too "big" for this application.
Throw away that "high performance" cam (only 1 in a pushrod V8) and get an "RV" cam (made for torque, not high-end power). We like Comp, but others have good grinds as well. XE256H would be my first choice. DEH255H would be second.
An Edelbrock Performer intake and a small (600 CFM) Holley would really wake it up. If you have a well-built Q-Jet, that's a great choice, too. Small headers (1 1/2" tube) are also called for.
Jim
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