Dave,

What are the specs of the SFT cam in it now?

What is your calculated CR?

Thanks - Brad

Dyno numbers can be influence with the same things as track performance such as weather, bad batch of pump fuel, bad timing lights and so on
Torque converters, bad or half bad, can really influence the cars performance, fuel system, traction, drivers technique and the list goes on until you get all of them perfect from the front bumper bolts to the rear bumper bolts

Sometimes you just have to work on a combo to get it dialed in. I had 85 dyno pulls on my 470 engine. It started off at 620 hp and we picked up 100 hp to 720. Took us some time, changed cams, rocker arms, intakes, carbs, etc. Finally figured out what the engine wanted.

here's the card. static 11.26:1

yes it does.

If I'm reading that cam card correctly:
302/308 at .020"
270/276 at .050"
110 LSA installed on (105?)
.600+" lift

Doesn't sound unreasonable for a 511 w/ that much compression that's expected to run on straight 93.

What type of rings & gaps did you use? And what sort of block prep?

If you go 12:1, you know your days of being able to run straight 93 w/o blending some good stuff when you really romp on it are most likely gone, right? That's especially so if you decide to tighten up the LSA that'll bump up even more cylinder pressure than the CR change alone.

I'm still of the opinion that until you take it to the track (if an engine dyno session isn't in your future) and get a chance to actually tune it, you're still in the Twilight Zone as far as knowing what it can do.

Regardless, good luck with it. I can only stand on the sidelines and see how this develops from here on out.

I had a stock stroke 440 with about the same compression the best is in my signature so you should be close if not better. Like everyone else said take that car to the track and run it

Good luck with the tuning

On the dyno, where did you have your timing at? And refresh my memory, what compression and what cam?

I can tell you, my 512's like timing on pump gas...AND, depending on whether its E10 or Ethanol free, my jetting can be as much as +4 jet sizes different.

You have to tune for this, its not somthing you buy a carb and get it right out of the box..Same with timing, you have to try it to know.

i am curious about the springs on the card,120/360..is that the seat and open pressure. it seems low?

I agree, my solid FT is much smaller & required 155/390

I'm not sure what I wrote there, but its not my spring pressure. The pressures are 145/410. Gonna run my current combo next season to get a baseline, then shave heads about .030". This will get about 11.9/12:1 compression with Doms cam which is a 274/280@50 on a 108 and .440/.427 lobes. That should push it to close to 700hp or over and into the 9.90's I would think.

I believe they were total seal 1/16 moly rings. If the cam has enough overlap 93 shouldn't be a problem for cruising. Dom does it. I have been thru ever circuit in this Dominator. Every circuit I drilled and set screws added with a precision hole that I drilled. Been tuning on this Dominator for awhile with Doms help. I think its there or very close. I will try more timing because I think that what it probably wants.

At your weight 650 will easily get you in the 9's. Definately dont need anywhere near 700
My W5 car weighed almost exactly what yours does( 3350), ran 9.80's and made maybe 650 at the most. More like probably 640
The new owner" hopped it up" and made 700 with it, and ran 9.62@ 140 with it, good bit more more MPH than i ever ran. This was dynoed at Best Machine and made 708. Dyno and ET line up.

This is going to be a long winter with you thinking about this but you should be mentally prepared in the spring when it is time to go to the track.Good luck.

MoparRich built and dyno tuned my Edelbrock headed 493 and it made 650 something. Comp. 308blahblah roller. I ran 9.24 at 145 with it in great air at Sonoma. The car was 2,600 lbs. though. 727, 5,900 stall, 4.29 gear.

The cam and compression increase is just a secondary plan. I will send the intake out for now and work around this flat tappet first. Once to the track and decide from there.

The 276-282 is after tightening up the recommended .028 lash to .020 hot and Isky and others say that brings the duration up in the process so that's why I've used those numbers...........I've been saying 276-281 forever so who knows........ This cam has gentle lobes and has been awesome for many years plus your cubes will eat a bit of duration as well so maybe BIGGER is even better..........

Im not afraid of that roller. If i were picking cams from catalog your cam is the one id pick. Even with a street car i would still want something on a 108 and a bit more lift. Your cam fits the bill in my opinion.

From the sounds of it, and by the title of this post....... You've already made up your mind that combo isn't what you want.
Might as well just start buying the new parts now........ You'll have all winter to change it over.

Yep. No sense wasting time trying to find a hundred HP with tune up stuff. Jus buy what you want and get it back together and then on a dyno.