Charges much much more than quoted
I will keep this simple, I sent a $60K 69 Z/28 for a cam swap, they charged me 70% more than they quoted me. Several problems were found during the dyno and tuning work at another shop. Their answer was to just bring it back to them. This car would have to be removed from the dyno, I would have to pay for dyno pulls again and a flat bed both ways. The dyno shop offered to correct the problems for $300 which I thought was reasonable. Colvins would not take care of it so I paid the additional monies for convenience.
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