Other than some more carb tuning, it is running great. I think I have verified that my old dampener had slipped a bit on the old engine, because I have lost that "high-speed wobble" I used to have. I fought with that for months thinking it was pinion angle, bad tailhouse bushing, etc. Still "hiccuping" right before the secondaries are opening, and didn't want to idle in gear, but I fixed the idle in the McDonald's parking lot. I had it too lean. Took it straight to the highway and ran about 70mph (got there quickly) and drove about 5 miles, then cruised around town for about an hour. No burnouts, no racing, just cruising. Engine is running too cool, might have to bump up the thermostat. It is cooler here this morning, around 70 degrees out, and the car ran about 170-175, then down to 160-165 when I got out on the highway...better than running too hot
Feels great! I miss seeing kids faces plastered to the inside of car windows pointing at my car! I like to read their lips as they say "Cool!" and get the attention of everyone else in the car. Now I have to tune this carb. I found that it has #65 and #67 jets, and it is supposed to have #76-81. So someone has tuned the crap out of this carb and it doesn't want to kick in the secondaries without going lean and hiccuping on me. I may have to pop in some new jets and start working up from as close to a stock configuration as possible. But it is running, and messing with stuff is what I like to do!
Go easy with the jet changes,do small incremental changes from stock.Record your findings and move on untill you get it where you want.Heck just putting the stockers back in may do it for you,god luck.
Anyone know what came on these stock? The book gives me a range, but doesn't say which one(s) came on this carb stock. I firmed up the slack in the accelerator pumps, and that got rid of the big hiccup. I had .015 gap at the accelerator cam, but it just didn't run right. I now have zero and it gets over that big hiccup, but still seems to be running lean when I get into it and stay there.
Got those secondary floats adjusted up right??? May need more shooter on the secondary side.First figure out if you want to change the jets back before tweaking the carb any more.I would start with #76-primary and #78-secondary and go from there.Go one step down first,if it still feels lean,then one step up.Get ready to do alot of driving and spark plug reading.Get a whole jet kit too,makes it alot easier.Scratch the secondary shooter thing I said,you solved that prob allready.(duh on my part)
Check the jegs or summit catalog/website and I think they list whats supposed to be in them. Congrats on getting the car back out
Without being able to correctly identify the model number (I know it is a type 4150, but not sure which model) I cannot get info on which jets are stock. I am getting info agreeing with Mavman 76-78-ish, and others saying 67-ish Not in a big hurry on this. At least I get to take it out and flog it while I am messing with this stuff. So, get the kit and skip the single sets of jets from O'Reilly? The Edelbrock kit worked well for me. Used the crap out of it!
WHOA!!! Just checked the kits. There is one that has all gasoline jets 64-99 but that seems like overkill. The other kits have increments of 10, 60-70, 70-80, etc. But at the price, if I got 2 sets in increments of 10, I am at $30, the big set is only $50...might be worth it unless I can get the correct kit first try at $15.
go for the big kit, you'll never regret it I have it also, and haven't used it in a few years but its nice to have. keeps jets seperated, as places for extra things (power valves or power valve block offs, needles, etc) Plus, if you upgrade and need bigger jets they are already there for you. Plus your alot less likely to loose the jets because they are in a big box. As for the edelbrock kit, I need to buy myself one of those.
If the carb is a 750 the list number would be 4779 if that helps and as far as temperature i think you right on the money i like my stuff to run around 160-165 all the time,seems to perform the best there too. Check out this chart http://www.v8volvo.se/mekartips/tabeller/holley-specifications.html