My car had the Gardner system when I got it. I thought the fit and appearance was excellent. Sounded good too.
Here's a sound clip with the previous RAIII motor:
https://youtu.be/u1TXdkyh29k
But, my current Pypes system is also very nice looking, mandrel bent and sounds very good too. Plus you get and X or H pipe. Tips look really good.
Pypes sound clip:
https://youtu.be/ldukr0rEMz4
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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear
https://youtube.com/shorts/gG15nb4FWeo?feature=share