i just checked the heads, they are the iron heads from a 350 tbi motor, last 3 casting numbers are 193. perhaps the motor was a tbi and not tpi, i bought the motor with the heads already off it but since it was rebuilt once, the heads may have been changed to the 193s in the past.
but i know someone who has a set of VERY nice l98 heads he'll probably be willing to sell.
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