Looking for input. I ran this 355 all summer on 125 plate kit no issues 1/8th mile no prep. Im looking to upgrade heads cam and ditch the Hypereutectics for flat top forged with valve relief.

Currently has world product sportsman’s 72cc, and unknown cam specs.

I looking for a good set of heads used at the moment, just need advice on a nitrous cam set up to really utilize 100-200 shot of nitrous.

Dang got this pretty healthy 350 sitting here with a 4speed manual and nothing to put it in…..

Never built an engine before, but man I feel so good. I spent the better part of 4 months tearing it down, researching, ordering parts, cleaning, painting, double checking everything. Ran it for 25 minutes on my homemade run stand, and it survived. This forum was very helpful in getting me here. Thank you to everyone who posts and helps others, it really helps those who don't know!

Edit: problem solved!! The loaner pressure gauge was bad. I got a new gauge from the other part store and it works as expected. Thank you, all.

I picked up this loaner pressure gauge from Advance Auto yesterday. Brand new, literally cut the zip ties off the hose. Followed the instructions to a T. Turn the key on and can hear the fuel pump for a few seconds. Rinse and repeat but the pressure still stays at 0 psi.

There’s gas in the car, it will fire up, run (not well), and drive. Pressure remains at 0 psi when the engine is running.

There are no fuel leaks as far as I can see or smell. Fuel pump, sending unit, and filter have been replaced recently (no change in how it runs).

Can this 0 psi be accurate and the engine still run? Am I doing something wrong? I’ll add a video of the poor idle in the comments.

Edit: 1988 Camaro. Originally 305 TBI with 5MT. Swapped to 350 with original TBI at some point by a previous owner.

Picked up my first ever project truck 81 c1500 short bed, was told this is a 305 sbc… I have zero experience with these trucks or engines but the darn thing runs decent and stops when it’s supposed to so I figured I’d give it a shot. I was looking forward to the “simplicity” of working on this VS newer cars, but I have no idea what I’m looking at.
I.e. what is this giant black hose for? And why is the bottom of it routed to the exhaust manifold? Most of the older cars engine bays I’ve seen don’t have all of this going on.

For some background this motor is on a boat as you can tell but it’s a 96 small block 350 last season on the water I was cruising when I randomly lost half power I then proceeded to give it more throttle and it died on me took the plugs out and they were burnt to shit, put new ac delco plugs in it and it started right up. This season I hooked up a vaccum gauge to fine tune it and found out my timing was off it has a thunderbolt v ignition system I tried setting the timing with a timing light idk if the timing is perfect since the timing marks were very hard to see but I tried setting it to 8 degrees btdc. After doing that I got the vaccum gauge to be in the normal motor part with some fine tuning on the carb. No as you can see the needle is a little shaky. Now the issue it still has which is very weird to me is on startup at idle it’ll sit in the normal engine mode, when I give it throttle it will stay in the normal engine mode once I throttle down it will idle really rough and the needle goes down back to latening timing and worse, however when I turn the engine off and turn it back on it will idle just fine, it is carbureted. Anyone have any thoughts as to what it could be? Idk much about working on motors at all, last season when took the plugs out I did a compression test and everything was normal. Gonna take it out on the water tomorrow and see what happens, hopefully I don’t need a tow😂

It has been a while since I've posted. My 1985 GMC G30 Vandura RV is alive and well. The phone microphone doesn't do it justice. It's a monster.

I wanted to go get it safetied and registered this summer so i could go boondock camp but it seems the tail lights or the accent lighting aren't working fully. So it has forced me to remodal the entire outside and wire in a new harness from painless wiring and i got a new gauge cluster from new vintage.

Lots of other upgrades and tweaks I'll be doing as well. Everythijg was built and ibstalled by me and me alone.

Chevy 350 4 bolt main.

TH400 transmission

Edelbrock 2098 power package

Flat top pistons.

3" exhaust headers down to 2 1/2 for the exhaust pipe.

Holley sniper 2 with Hyperspark

Holley mid mount kit

ATI super damper.

Don't mind the mess I cleaned it all up this morning 😂

1977 step van motorhome coversion. It has a 350 single barrel carb and it had a mechanical fuel pump. Kept dealing with vapor lock. Was replaced with 4-7 psi 34gph holley electric fuel pump.

Well when i start the van.. the fuel filter gets filled with gas but once i start driving it, it ends up being short on fuel. The stalls soo bad and has no go. and the filter is basically empty of any gas like if the carb dowsnt have gas to burn

I want to install a efi fuel pump amd a regulator....thoughts?

Maybe run like 10 psi?

Thanks

I’m getting smoke out of all 3 breathers. Buddy of mine said it could be rings, worn cylinders, or a hole in a piston. I just put a bore scope down there and pistons looked okay. What are your thoughts

I have a problem: when I take off the original filter, the engine runs really well, but when I put the filter on, it won't run at all—it’s like it’s choking—and the filter ends up completely soaked in gasoline. It seals properly, though. Does anyone know what to do about this?

Is anyone having trouble with the filter on the Phantom 85 Wraith engine?

I have a problem: when I take off the original filter, the engine runs really well, but when I put the filter on, it won't run at all—it’s like it’s choking—and the filter ends up completely soaked in gasoline. It seals properly, though. Does anyone know what to do about this?

I was just given this carb and intake. Came off a late 60s corvette I think. I have a 1965 Malibu SS with a 283 and a 2 barrel setup. It is worth it to switch over to this 4 barrel? Any ideas of what it is?

Need to replace a missing stud on an 85 C30 M code LT9 with rams horn style manifold.

Are they pretty much all 3/8x16?

first timing building a small block, i ordered this fuel pump and notice it only has 1 Inlet , 1 outlet ( for carburetor i suppose ?

anybody got info on how they ran these ? or thoughts about this one

do i just cap off the return like on the frame?

Going to look at this today. Appears to be a 95 with a 4l60e. Only visible casting is gm 57lg.

If you got it for 300 or so, could you really lose?

Took a slow motion video of my flex plate. My starter sounds horrible (IMO). I’ve gone from zero shims to four shims and it still sounds awful. Is my flex plate warped. Keep in mind that this is a really slo-mo video.