Now running a 15 X 10 Medium Cupped wheel and hitting 4,300 - 4,400 RPM at WOT. Picked up a couple knots at WOT to 22 knots, boat has more power...
I own a 1978 26' Flybridge/Sportfish Pacemaker with a single 350 CID (260 HP), 1.52:1 transmission ratio. Would anyone know which size prop was...
SC - That's alot of extra fuel/oil you removed. May I also suggest the following if it's not carb problem: If you have a mechanical fuel pump,...
Glad you're running better. I should have tried a leaner spring myself when I rebuilt mine. Next time if I have to rebuild her again. I'm sure the...
it's possible your power piston might be stuck in the up position thereby keeping your primary rods up and out of the jets resulting in a rich...
The procedure I use knowing all else is OK as mentioned previously "points, plugs, no missing, proper ignition timing, etc.,": Connect vacuum...
Where To Buy Primary Rods Try Edelbrock: http://www.edelbrock.com/automotive/index.html . They show .041" & .043" primary rods. Also try...
Hi Woodboat, Couldn't find exactly what you're looking for, but try these:...
Rebuilt the 174082403 carb. Found main problem was fuel well under secondary jets completely restricted. This took considerable time and patience...
Hi Woodboat, Thanks for the input on the 10" pitch. After reading you post, the 11" is probably most appropriate. This is a Pacemaker with...
Hi Steve B., The spreadbore Q-Jet I'm dealing with was purchased via internet remanufactured supposedly for a 350 CID/5.7 Liter G.M. Carb I.D. #s...
Woodboat, You mention I may have unknowingly fixed something - The Power Piston assembly did appear to be stuck when I was trying to remove to...
Your right Rich, Same concept as I've used years ago to analyze combustion gas flues/vents for boiler efficiencies - ratio of fuel to...
Little follow up to results on my Quadrajet carb changes: Before changes - Idle speed in neutral was 700 RPM, no changes to air mixture adjustment...
All right Woodboat - you did it to me, got my curiosity, now I have to check this to satisfy myself. My engine is a remanufactured long block,...
Yes, heard of the book and was tempted to buy. But found this link which was very informative, although application was automotive, assumed to...
Your absolutely right Gonzo, I'm not an expert on Quadrajets, but do know you can properly tune a quadrajet to outperform most others - when...
Carb performs much better since syncronizing the secondary throttle plates to start opening when primary throttle plates reach about 50% open....
Utera, Don't have the slightest idea what that link is saying. I'll check back with you after I complete my foreign language course. Have a...
It's definitely a marine carb. I compared the opening positions of the throttle valves of the old carb, and essentially adjusted the new one to...
