I would be more worried about the tight rod bearings in your old engine. Get that sucker together and “send it”. The day I worry about .0005 to much clearance I quit.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time