I agree with the above posts. Do a leak down and compression check, and if all is within normal range just drive it ! No way you will get 270hp out of a 3.0 unless you increase CR and run race headers and exhaust. You're in CA , the CARB police will be all over you.
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'77 1973 911RS Backdate, 2.7 liter w/webers
'70 911ST , 3.2 liter '82 '74 911 IROC Tribute , 3.0 in progress
'75 911 RSR street car in progress
'77 930 Replica '75 993 GT2 EVO race car , 3.6 TT
'79 928 5 speed money pit in progress
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