THREAD HY-Jacker!!!!!
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Normally I call this reply good common sense except it isn't good advice since the Edelbrck Performer cam is ultra lame and there RPM cam is a bit overly aggressive for the current performance level sought.
The "Matches" package is a great gimmick from Edelbrock. Walk away from it.
I'm glad you know where you want to go with this project. I'll have to agree that a cam like the Comp XE262H is right about what you want to use. Lunati's similar cam is also a very good one to consider.
That muscle car sound comes from the cams centerline and opening/closing point as well as rate of lift and ....... To make it simple, a cam on a 110C/L will have "That sound" your looking for.
An intake duration under
[email protected] is what you want to keep the stock converter. I ran an old Crane Hyd. (216/228 @.050) on a 112 C/L with exhaust lift @ .480, no head work at all. Dead stock 318 heads from '79 & J heads.