Edlebrock carb & intake manifold

I have a 1985 SN 351w RH rotation. End of last year did not run that wel top speed 30 mph.
Tried to start it a couple of weeks ago would not start. Sprayed a little sarter fluid in it, got it running, but not good. This is the second holley in it, only 3 yrs old. I want to put a new edlebrock carb and intake manifold,elec dist , wires,fuel line, coil and resistor,    I talked with a edlebrock tech, got on the subject of the pcv valve hook up. I asked him if I could just get rid of it, he said no,it is needed. The edlebrock does not have a pcv port in the front.I also said that theunder the holley is a riser and the pcv port comes out of the back. He said very poor design , it should come from the front, something to do with better air distribution to the manifold. He did mention using a wedge but said that I still have to make sure that the pcv was hooked up properley.He was very serious about hooking the pcv back up. Any ideas on the best way to do this or does he know what he is talking about?

arktrans
For another opinion, The info you have got from that "tech" is not correct. Stick with the ORIG equipment, Here is why. The crankcase needs the pvc valve vacuum to keep the piston ring bypass (Blowby) from collecting in the engine. Now on "Racing" engines they often only have breathers on both sides of the valve covers to release the blowby to outside air. This is fine for them but on a marine app thinking not a good idea as everything on a boat is enclosed to reduce fumes to a minimum. Play it safe and get to the REAL problem you are dealing with. GET GOOD HELP. A holley is very very easy to clean and check. Look at the complete engine before you spend the cash on a new carb. I say all this because I have in the past done the same thing..... And just was missing the real problem.
Bob

plus with no PCV, and the engine unable to breath, at times they will blow the seals out because of the crankcase pressure, the pcv is a working system of any engine and is needed..there were guys back in the day that would put a small orifice in the engine and run a vacuum pump on the crankcase side of the engine and create negative CC PSI, kept the engine real clean and was said to increase HP...nothing in writing to back it up though

Ark, where are you form here in Cleveland?
how many hours on the boat? Ive been again messing with an Edelbrock carb recently, for some reason they like to dump fuel down the engine, I have such a hard time with them whatever they are on..stick with the holley, I think if you describe in detail some more of the problems you are having with the boat, someone will come up with a solution....anything else on the history of the boat will help too.

I live in Strongsville.

J-Bear is from Strongsville, im down the street in the Brunstucky, but live in Aurora
one of these guys will be able to answer the spacer thing

If the dist were the problem wouldnt it run bad at all speeds and rpms.

arktrans wrote: Why would the summit or weiand not need a adapter?

This just a wild guess but I'd think the Edelbrock manifold is designed to fit an Edelbrock carb. The Holleys we use are square bore and someone correct me if I'm wrong but the Edelbrock carbs are not. ( I may learn something here but that's my guess)

I'm not positive on the WEeiand because I don't have one but I don't believe you need the adapter. I put one of the Summits on my boat this winter and it does not require the adapter.

ps. I took a chance on the Summit brand simply because it is quite a bit less expensive and I can say nothing negative about the way it's built. Nice heavy walls and plenty of room for gasket matching without the fear of breaking through.

arktrans wrote: Do you know what Summit model # you bought? SO you put the spacer than the holley?

Summit intake

I went with a wedge spacer

What degree is the wedge? Does that wedge have a pcv port? If not where is the pcv hose going to? What model is the Holley?
How does it run with this set up?

Sorry to ask so many ? I hear so many different mods , I just do not want to make bad calls if I know there are knowledgeable SN boaters that have already research and found out what is the best set up.

ark, i have a spacer somewhere, call me and I'll pull the model number off a Holley, you need a marine carb on the boat.
Alan, all holds true on the Summit brands...Summit doesnt manufacture thier own products, they purchase from the big companies and the parts meet or exceed normal qaulity because of the liabilities. when your on the phone with them ask them who makes the part and they wont tell you, I always buy Summit brand Cams, they are half the price and hold the same warranties, even though im told Crane went out of business, they made the cams for Summit, you would Always see a Crane box in the instructions when Installing.
I always go for the Summit products first then to the mainstream

arktrans wrote: What degree is the wedge? Does that wedge have a pcv port? If not where is the pcv hose going to? What model is the Holley? How does it run with this set up? Sorry to ask so many ? I hear so many different mods , I just do not want to make bad calls if I know there are knowledgeable SN boaters that have already research and found out what is the best set up.

That is an 8degree wedge transdapt 2028, it does not have a vacuum port. The carb is a newer model marine 4160 and has the vacuum port on the base. If your carb does not have the port you can hook the PCV to the rear of the intake. In my photo I have the port plumbed for a vacuum gauge (Red Cap)but thats where you could hook the PCV.

It runs awesome, many here run the wedge and I'm not aware of any problems

I have just orderd a new Holley 4160-80319, 600 cfm, it does not have a vacumm port. What model do you have?

I re-read your post and you did do a comp test good....now, rich plugs means that the carb probably is working like it should. its definitely not an air problem cause there is no air filter which leads to spark, are you getting a nice purple spark or an orange spark?

i think the Mallory will cure your problem (if installed correctly)