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Max Wedge ? It's always been my dream car.

One of my favorite Mopars along with the 62-64 Polara

With the intake and head choice I have a feeling this one will fall short too. At this power level I'd be looking for a competent builder that puts together 600 hp sbm on the regular.

If going for 600 hp why not go tunnel ram ?

What are you doing to the head to get 600 hp? I'd want heads that flow 310-330 cfm @ .500-.600", I imagine you could do it with less.

You'll probably never come across a problem, all I know I wouldn't buy a car without an ownership especially for good money. Not like it's that hard for the owner to get one.

I still a car, it technically belongs to the last guy it's registered too unless you can prove he sold it.

I mean "title" as in ownership, we need ownership just to scrap a car.

I don't get people trying to sale a car but can't be bothered to get the title.

@pittsburghracer have you ran your car through these formulas just to see ?

Here,s some Speier's vids and formulas from his web site. Average_CSA = Port_Volume_CC / (Port_CenterLine_Length * 16.387) MIN CSA = (Bore x Bore x Stroke x RPM x .00353) / 613.8 (.55 MACH) Port_Volume_CC = Average_CSA * Port_CenterLine_Length * 16.387 Port_CenterLine_Length = Port_Volume_CC / (...

Speier really believes in those formulas, seen him battle other dudes over them, the others seem to see them as guidelines.

I understand Top Fuel is totally different, but they have to open the exhaust valve vary late cause the pressure so high it would destroy the valvetrain if they tried to open it early. Not saying this is what's happening with alcohol but image there could be some effect the cam has to...

Don’t know why to do it any other way, maybe try the one you think is best last might limit the swaps if it is.

You'd need at least 100's preferably 1000's of examples of engines producing X amount of hp over number of years preferably in racing or another high stress usage with an acceptable failure rate, anything short of that your guessing.

Even say there gonna be less than ideal on a milder combo (and I'm not saying they will be) how bad would they have run before you'd think it's worth while spending money on new heads to run ? I'd run them if you don't like 'em can always swap later down the road.

What's size intake valve ? The most shrouded spot between the valve and wall behind the valve guide from what I understand, you don't want a lot of flow there cause of swirl anyways ?

You would with Cubic inch and rpm (displacement over time) which is basically potential Hp, the engines we deal with have a somewhat narrow range of efficiency. Eg.. If at 100% VE 318 @ 7500 rpm and a 511 @ 4667 rpm would displace the same amount of air a minute 690 cfm. To me the true...

True depends on what your doing, In a highly competitive race class all those little things matter a lot, in a weekend burnout machine that may occasionally see the track not so much. There's definitely no advantage going smaller, but if we all cared that much everyone would be building 400/440 :)

Better don't always mean a lot better and or worth while, I remember a test where they compared Chevy heads on a 4 vs 3.75 bore and there wasn't a huge difference, like 5 cfm. I'm sure idea those bore sizes are for valves a lot larger than 2.08"

Shrouding shouldn't be a problem :) Depending on stroke and intended rpm feeding them might be.

318willrun has two 4bbl on a mild 318 with stock stall and gear. No saying yours will be optimal but you should be able to tune for functional at least.

Aren't you using a Isky E4 ? Short on lift but not too different on other specs Solid Valve Lift Int/Ext. 0.425 Valve Lash Hot Int/Ext. 0.015 ADV Duration Int/Ext. 260 0.050 Duration Int/Ext. 216 Lobe Center 108

Holdeners cam is only slightly bigger in duration, probably at most something like 10hp less. Think his was 212/218 114 480

Lift wise ? Duration is a lot less

As long people stay somewhat civil :)

No 318 ever came with a 340 cam and very few 360 did, most 4bbl 360 had 2bbl cams.