Bo Thanks bro, Im going to call and see who has these
Kurt, Dude, where ya been my friend?
I want holley's dont get me wrong but I need to finish out the season this year with no more big money
I can get holley's over the winter and bolt them up in the spring.
Im just beyond tapped at this point
Are those marine carbs or car carbs?
I was thinking about holley 750's and someone had said go bigger and adjust back is easier than going small and not having enough so 830-850's would be better and adjust them back a little bit
Rather have too much carb and turn it back than not enough and blow her up
so If I am going to spend the money , im going bigger no question
Who has good prices on marine holley's anyway?
Jason

"Rather have too much carb and turn it back than not enough and blow her up "

dude doesn't matter if you had a 500cfm carb,,,that would not cause it to blow up! if your card is too big then your drivablity will suck....hummm 510ci 730cfm carb kinda sound like a race class of some sort???


so i'll say again...it has to do with cid, rpm and the volumetric eff. of the engine...NOT HP!!!

Jayl13.....As to the carbs...Q-jets do indeed flow 750cfm.
and as the name says....Bo Knows !!!! You can drop $600
plus each for Hollys or follow Bo's advice,they will work fine on
you're motors,just tske a little more knowladge to set up.
BUT.....first...you need to adress the oil press. problem !!!
did you Mechanical guage yet ? DO IT NOW !!!! Also Oil Temps
they tell you {And us} alot more about what is going on !!!

Just trying to save ya a bunch of pain dude !!!!

Hey BO,
That is good for the secondaries but what about the primaries?
The fuel flow at 1200-1600 ish is poofing out the carb and it quiets down running around 3100-3200 rpm's and then it poofs around 4000
I can see the metering rod change helping out at 4000 rpm range but what about the low end when only the primaries are open and the secondaries are closed on the carbs?
Do I need to change the metering rods for the primaries too?
If so you got that part # handy bro?
thanks, cause I got the parts dude on the line (RCM255 here on OSO is PARTS KING!!!!!)
Thanks man
Jason

Yo Jay.....

One more post and you will hit 1000......

You are one troubled post whore!!!

Does anyone have the answer to this?
Can anyone help me out here?

Hey Mark, NONE of my posts EVER were whorish!!!
EVER got me buddy boy? LOL
that 1000 posts just means My shiz nizzle be broke more than most is all!

You still going to burlington?
Im going to try but cant do it with a busted ship
Im trying to, Russ can get me the metering rods but need the answer to the primary metering rods question first
Hell why does no one know rochester?
Jason

Jay sounds like Bo Knows. Call him, email him, talk to him and walk your way through all this SLOWLY and watch your oil preasures

Question for you guys. Is there any reason that you can not read the oil temps accuratly with one of those Infra Red Temp guages that you aim at the part and it tells ya what your temps are? like aim it at the pan and the oil filter?

Jon

True Dat.

Yea, i'm still going. You and your wife can come out with me if your ship is still broke.

Call the Bowen's place...they do Rochesters all day. they will probably be able to tell you what you need, and sell you the parts. I'll look for the number.

jay,,,what would logic tell ya???

Is there any reason that you can not read the oil temps accuratly with one of those Infra Red Temp guages that you aim at the part and it tells ya what your temps are? like aim it at the pan and the oil filter?

yes there is..... you get the surface tmp of what you are measuring.....heat transfer...what is the delta between the inside and out side of wha you are measuring???...

there are SO many other factors that this dude (engine assembler man) can't give ya....if this bone haed didn't even check for coil bind....now how the **** did he measure install hieight, seat pressure, pressure at 50 and max??? how about checking the damper spring clearance....did he use 3 springs? or 2 w/a damper?? ALL could lead to ASS LOADS of HEAT...what about pushrod alignment??

THanks Audacity. You are such a wordsmith