What Are You Doing To/With Your Car Today?
A nice afternoon, so I decided to do a little carb tinkering (QF 950). It's always been a little fat at low speed, low load (where it needs to be lean) with a 10.5 power valve, so I swapped in a handy 7.5. That may be just a hair late at low speed cruise, although 15.5-16 AFR doesn't hurt anything with the gas just barely cracked. And of course the slightly late-opening PV won't affect the all-important hard acceleration. I need to order an 8.5 valve ;)
Also decided to stop driving myself nuts trying to fine-tune the bottom end of the fuel curve (there has always been a lean stumble at low rpm at the very beginning of the transfer slot). The stock pink cam definitely wasn't right. Tried a black one for early squirt, but it doesn't shoot enough for the thirsty 451. The blue cam is on my old carb (4780-2 800 DP) and I didn't want to take parts off it, so I put on the green cam. That covered up the hole nicely - now I can barely feel it. WIth a 4-speed I don't have a loose converter to crutch the big cam while putting around. :realcrazy: