you're making some great progress!! Some observations you may want to look into. the heat shield doesn't look correct on the exhaust manifold. i believe the one on yours is for ealier setups. Also, the front pulleys look like they would be for an A/C car. non A/C got a larger water pump pulley and smaller crank pulley.
my original plan for my 79 TA was to make a w72 copy. that lasted for a year before i went a whole different direction with the 428... lol
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1979 Firebird Trans Am 301/4spd (Now 428)
1977 Firebird Formula 400/Auto
2007 Grand Prix GXP 5.3L
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