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Holden202T wrote:also in my experience of big cams you want to have slightly richer than 14.7 at lower rpms, like up to 2000rpm say go 14 or 14.2 etc ... alot of it will be trial and error, but you'll get there in the end.

I might look at leaning it off a bit the plugs are a bit black after idling. Not wet though so I guess it's not to ba.
I dodon't have a wideband yet so not sure how good the VE is yet. After driving the plugs are very good.

i'd be getting a wideband on it before you go too much further, you could well be changing things to make it idle when all it really needs is a ve change etc ...

That's the best bet although it's idling quite good now just a bit high but I will be getting one just tossing up between Innovate and 14point7. Innovate seems most popular.

I just want it to go straight to ecu no gauge. I'd love to unwrap my engine loom and incorporate it with that and change my narrowband to a 4 wire why I'm at it. Or am I just over complicating it?

Dylan wrote:That's the best bet although it's idling quite good now just a bit high but I will be getting one just tossing up between Innovate and 14point7. Innovate seems most popular.

I just want it to go straight to ecu no gauge. I'd love to unwrap my engine loom and incorporate it with that and change my narrowband to a 4 wire why I'm at it. Or am I just over complicating it?

no overkill, thats what I am doing to all my looms. Except I am integrating a plug so I can plug in a WB when needed.

4 wire NB is necessary on extractors I found.

That's what I've heard I have big long 4 into 1 DiFillippo brand

What do you call a high idle?

You don't want to idle it to low with a high lift SFT cam with high spring pressures unless you want to eat cam lobes

I didn't know that can be a problem, thanks.

Currently it's a steady 1150 rpm

I've got a mate who is now on his 3rd cam in his Corvette fitted with a 350 Chev. Isn't running a huge cam but was running big springs that were fitted on the Edelbrock heads he bought. I'm sure his extremely low idle is a contributing factor. He's tried cams from different suppliers, matching lifter and springs (1st cam was from the US, 2nd set which came from Kelfords in NZ), run in oils, high zinc oils etc.

These days cam lobe failure seems more prevalent, most folks point the finger at low zinc oils.

rule of thumb i use for flat tappet cams is if it makes it to 1000km its probably going to last a while and can start to breath easier LOL.some dont even last the 20 minute breakin when people do them wrong.

the problem is, "flat tappet" setup isn't actually flat. they are convex slightly and the lobes are slopped to one side and center offset from the lifter slightly. This effective makes the lifter rotate and roll around the lobe.

the lifter must rotate at all times, if they don't the setup is wrong they they will fail immediately. Also they need to be lubricated at all times during the crucial break in period. Oil doesn't cut it unless there is a manganese oxide? coating to make the oil stick to it. That black coating they come with.