ouch - 270@050
i think i'd say thats too much for my aims

Tex

What I was getting at is the 590 will make great power down low, and you won't have to shift higher than 6200. It will however, have a rough idle. How close do you think you are on all other aspects of your combo? Jetting? timing? Cold air intake? 60 ft? Maybe a post on your entire combo, along with shift points, and all details of the time slips is a good idea. There may be some gains to uncover, which will help in deciding just how much cam you need to obtain your goals. With as loose a converter as you have, you can get away with about anything though.

Sport440 thanks for the clarification
Greg
Current set up 68 Satellite
3764lbs with driver
440+055.10.78 comp.
509 cam,Crane 1.5 rockers.about 5.5"vacuum in gear
stealth heads,pocket ported only,open up behind valve and touch up radius,clean up ports
M1 single plane manifold
mighty demon 825,78/88 jets,6.5PV,35 front squirter,35 rear.1" open spacer,tried others no real difference
hooker 1 7/8 comp headers,3"system plus H pipe to diff,3"aero chambers
QA1 single adj front shocks,Rancho rear shocks with Caltracs.
dana with 4.1 gears
Hoosier radial slicks,275/60R15
six pack hood with cold air box.
sumped fuel tank,-8 line to mallory 140 pump,-8 line to mallory dead head reg,-8 line to carb fuel log,-8 to needles
18DBTC initial plus 18deg in at 2300 ish
leave the line at about 2800,can't hold much past this,vert flashes to 5100.it is a dynamic 9 1/2
best mph 119.47,Et 11.187@118.95
sixties best 1.54 average 1.55's
i shift at 6000rpm,trap 6300/6350
i have run this jetting for a couple of years,more fuel does not seem to help,AFR last time checked on the dyno was 13.0-13.2 this showed 416 RWHP and max TQ of 791.5 at 110KMH(about 3500RPM).Peak power was 57/5800rpm
rough idle,so does the 509
the cam does seem to be knocking off at or just after the stripe
1/8 mph is 95-mid 96 7.08-7.15
the only thing not checked as said is P to V
personally i am a little suprised how fast this has gone
thanks
Tex

I think your combo works well but you will have to up the cam to gain significant power and or have the heads fully ported. The .590 isn't 265 it's 271 dur at .050 and it is lumpy.
Mick

Deaks,
thanks.
all my info shows 265 but ?
i think i will need at least 258/260@050 to see a real gain.
Tex

cool thanks,i was going off the DC cam lists

Tex

I measured my mp 590 @ 272 @ .050 no lash. Toss in your effective duration loss with lash, of around 7* and what do you get. I never measured mine with lash figured in though.

MP,s 265*@.050 number is a calculated number off of its advertised duration of 312. 312 x .85 = 265.2

Your car IS Bad Ask!m I think you should keep with the MP cam route and go with the MP 590 if it will fit P/V, your Verts already fine. You will see your two tenths.

Thats the route Im taking.

thanks again,
much food for thought

Tex

If you are looking for a bit more good info to get your car in the 10's, there is much to read in the "fast 3.75" stroke combos" thread:

https://board.moparts.org/ubbthreads/show...rt=all&vc=1