Ok, here are the specs: Brand-new GM motor with 475 miles on it. engine goodies include: Summit Headers Uber-Spark wires Curved HEI Well tuned q-jet edlebrock Performer manifold fliped air cleaner Brand new tranny with 475 miles on it. w/ mild shift kit POS K5 of mine, a gazillion miles on it. One ton, X-over steering with 20 miles on it. 39.5's that are "balanced" only in theory. I keep spitting vaccum port caps. particularly (remember, i cannot speel!) the rear 3/8 one facing the trans tunnel. I have a Kragen Q-jet that i have had ZERO problems with after we tuned it. I have no choke, no nada. and it is getting to be a pain in my phat arse to crawl under there every day to replace these caps. it does backfire a bit when cold, could that be it? can i crazy glue the damn cap on??? or is this a tell-tale sign that my engine is gonna go :boom: on me? /forums/images/icons/smirk.gif *signed* the fat kid that hates vaccum stuff.