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[QUOTE=Detroit Whitey;86683]Well this is intresting i think this thread is off in a differnt path[/QUOTE

I agree. This BS needs to be moved to a different thread, so we can get back to the 3...

If they are from a 60 the manifold opening flange is 1.375". If you get carbs from a 70 or 75 they will be 1.5" and perform much better. On the EP that won the Nationals in 89 and 90 we ran .056D...

This flywheel came out after the SST60 and it's heavier.

About .060" to .120" depending on which model the 70 came from.

SST60 mains .073D. air .033.
Stinger mains .056D. air .025

Beginning 1983 the Stinger had the same crankshaft and main bearings as the SST60. The mains were the same in prior years but the crank was cast rather than forged.

Later model Stingers and SST60...

I see you are using the oval port 56. Have you tested one of these against the bridged port?