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Pontiac of the Month

dues70's 1970 Pontiac Bonneville

2020 July
of the Month

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75 Trans Am 400 Upgrade


Hey Everyone,

I have a 75 TA 400 4spd. 35K Original miles.  Bone stock 400 and I had plans for a set of Edelbrock heads and mild cam to breathe some life back into this engine.  I see most Pontiac guys say the stock intake and Rochester are overall better than aftermarket IF you know how to tune a Rochester.  Just wondering if anyone has gone this route and if so, what primary/secondary jets were used?  I would like to keep the stock intake/carb set up since I don't want any issues with the shaker.  I know there are aftermarket options to adapt this but I'm trying to stay away from that.

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