Sounds good. Port work is expensive, but cams are not. Both a lot less than an additional motor
Get a good handle on the condition of the current engine as it stands and then talk next steps. It may bee that your engine is fine and this discussion is moot for the near future.
Best regards,
michael
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Michael
'82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah
'13 Cayenne GTS