nitrous on stock block
 

on a completely rebuilt stock block, how big of a shot could my 98 cobra handle?

Nitrous questions go in the power adder forum, moving...

Stock motor I would go 150shot max on stock bottom end. Block will handle lots more then that. Lots of people do 125-150shots with good luck. The key on 4v motors is to spray at a higher rpms then regular cars so the fuel/nitrous mixture doesnt slow down and puddle and cause a backfire.