Here's one for $145:
https://www.amazon.com/dp/B09L4QBLT6...kZXRhaWwy&th=1
I think the 1st gens have a different core support for the 4 core radiators, so you might be better off using a 3 or many 2 core with wider tubes. Measure.
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song:
http://www.youtube.com/watch?v=7zKAS...ature=youtu.be