The highs and lows of building hot rods. I had a severe hesitation say 1/8to 1/2 throttle. I changed squirters, power valve, adjusted floats and finally bumped the primary jets up 4 and it ran great. So I bring it home and the idle starts getting erratic. Put the vaccum gauge on it to adjust the idle mixture screws to no avail. Thought mayble the new power vavle was opening at idle. I finally figure out that the primary venturis are dripping fuel usually meaning the floats are to high but I set them dead nuts. I pulled the site hole plug and theh primary was to high. Strange, so I reset it and it's doing it again. I watch the fuel in the bowl running and it's to low now. I finally figure out the needle is not moving freely in it's bore. (Possibly debris)So I finally get it running great and the needle craps out. To say I was pissed was a major understatement
Anyway, I grabbed a new needle/seat, float, and gaskets just to be safe and bumped the jet up .001. I'd give it a 9.5/10 now. This car has never run this good. Changes I made to make it happen:
PV: 4.5 to 7.5 to 4.5 to 7.5 (Higher vaccum on this engine)
Primary Jets: 71 to 77 to 78
Front squirter: 32 to 37 to 40 back to 37
Rear Squirter: 37 to 40
Replaced needle/seat/float/gaskets
So another hands on Holley tuning experience. My garage smells like a gas tanker and one of my neighbors came over to complain about the noise.
I've been working on this thing so long and much she thought I was running a shop!