MiradaMegaCab said

Porting is not necessary but will help.
In a NA engine port flow and velocity are important.
In a boosted application port volume and bowl work will help. A 3 angle vavle job will help too.
I myself run unported heads.
As stated above cam timing events pay a big role in boost pressures.
A wide LSA is recommended.
I have run a 108 cam in a 9.5 to 1 CR blower engine. Total mismatch but the overlap kept the combustion chambers cool. I ran 6PSI of unintercooled Roots boost with a 150 shot of N2O.

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MiradaMegaCab said

On an old school Mopar remanufactured short block engine (9.5CR, .509 cam 108LSA) and box stock Edelbrock heads, I ran a 10.6@128 3800 pounds, 3.55 gears, street tires with pump gas.
I drove to the track, about 100 miles one way.
By no means was the car set up for all out track use, no cage, SS springs and stock front suspension.
Pretty much a budget build. The short block was 1000 bucks.

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