65 273 intake

Performer 318/360 will fit (remember to remove any dowels from the block!!!)
[FOR SALE] - Edelbrock Performer Intake.
Take a 5/16 drill and lean it over in the aluminum bolt holes to match your 273 bolt angles. Use a little RTV on the bolts to prevent the oil from migrating up and a washer. I ran one for a year like that, no leaks. Unless you can find a 273/4 intake, even the marine ones will work, they just had a slight angle on the carb pad.