I have been having trouble with an oil leak found my dipstick keeps pushing out I need a long block I don't have the time to re ring mine right now has to be near ct I don't want to pay a hefty shipping charge

I just finished installing a new non jet valve head, Ajusa gasket, and arp studs on my 87 starion. Rebuilt the throttle body, and did pretty maximal vacuum deletes based on write ups found here.   The injectors are not stock and require spacers in the TB to accommodate their increased height.   The car has a dead miss now that is unaffected when #2 and #4 plug wires are removed although they are both getting plenty of spark.   Can you guys give me some ideas of where to start looking?

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Spoke to a rep today at farm machinery show in Louisville KY whose company makes weather stripping for automobiles and is getting into the agriculture business. He told me if I took pics and measurements they might be able to do a batch run for starquests. Would anyone be interested in replacing at least the outer seals? Inner seals? Or both? He said he would need to wait until her got measurements figured and numbers together but probably be in the ballpark of $3 - $5 per foot range depending