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The only difference I am aware of between off-road and [ on-road? ] is that the off road version has spring loaded needles & seats. I would just...
0.32 ohms is getting low-ish for inductive ign, might have been designed for CD ign. Their website description should tell you the application.
Engines fired up after sitting for 25 yrs [ & a lot less than 25 yrs...] can develop a multitude of different problems. I was called to have a...
Quite common, have seen it on many engine brands. Bearing surface de-laminating.
It's a quantity thing..... Furds & Chebbies are more popular, more parts get made, unit price comes down.....
Check that at idle, in gear, the met rod pistons stay down. Easy 5 min check: loosen piston covers slightly, swivel to one side & re-tighten so...
Dual plane or single plane intake? More info needed on the cam specs. Do the idle mixture screws control the idle: make the engine stall when...
About MVA, scroll down to post #6:www.hotrodders.com/forum/vacuum-advance-hooked-up-directly-manifold-bad-47495.html
Maybe photo angle, but I don't see any T slots in the secondaries, only an idle feed hole [ non-adjustable ].
I thought Poly dual 4 bbl intakes are pretty scarce these days, so wouldn't you get a good price for it?
The nut should be tightened [ to ensure the brgs are fully seated ] & then backed off to the next slot in the nut. Ball & roller brgs require some...
Heat & load are the enemies of detonation. Unfortunately the 'fixes' will require some experimentation. And maybe some $$$$, depending on how far...
A Holley 750 that gets 13 mpg around town....should be in a museum in the rare artefacts section, lol.I would expect a 6 pack to get slightly...
Rope seal= model T One piece silicon seal= space age
RRR, You are misreading what I said. Never said they were factory carbs, they were replacement carbs made by Carter to replace factory carbs &...
RRR, I have an original 1980 Carter Catalog which has a one page feature on these carbs. Nowhere is the word 'Competition' used. I have heard...
Is that a factory cross ram intake?
The original Competition Series carbs had a number that started with a '4'. I have heard some of these later models, 9XXX, also had the...
This engine is going to want AT LEAST 30* at idle & probably more like 35*. The best, simplest way is to use MVA [ man vac adv ]. There is NO WAY...
Is it an elec ign dist? Pick up wires reversed?
The exh seats [ in the head ] need refacing & so do the exh valves faces.
If the car has been in storage for 25 yrs, might have sediment blocking the idle system.
Factory timing settings are conservative because the manufacturer does not know the end use. So increasing timing slightly can yield benefits, as...
Electric motor.....
Rumble, Tried to PM, didn't work. Probably me doing something wrong. Yep, the top pic shows the underside of the sec high speed air bleed. Where...
Both are excellent books & should be read by anyone who is attempting 'home' tuning. It is interesting to note that for a couple of decades or...
Timing jumping is probably the engine vacuum trying to pull in the VA plunger but vac is not high enough or stable enough. So you need to check...
The t/blades are open too far at idle & you are accessing the ported VA port. Needs bypass air so that the blades can be reset, with about...
Basics, basics, basics. That is a sizable cam. Remove the carb & see how much T slot is below the blades. I am betting it is more 0.060".......
Rumble, I am in Sydney, Australia. Don't know how to post pics, sorry. But easy to describe the sec HSAB: remove the sec jets & there is a thin...
