It should put down around 415-430 rwhp depending on how good the heads were done up and the tuning. Mac midlenght headers arent all that great...but I have seen some decent #s with them. Not a bad car. Where is it located.
I would say value is a little less than what Ghost 727 said. id say between 14 to 17k depending on the up close condition.
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if it's cheap & reliable, it ain't fast, if it's fast & cheap, it ain't reliable, if it's fast & reliable, it ain't cheap