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  1. megacab

    Open exhaust Hp gain?

    Seeing what the consensus is on open exhaust.Im going back to the track next week,and would like to pull my exhaust for some et gain.Last time at the track the duster ran a [email protected] was with a full TTI exhaust,3 inch with an x pipe,magnaflow muffs and the rest of the exhaust over the axle...
  2. megacab

    Which oil pump

    Hey guys whats up?Had an oil pump question.When i had this motor apart last month i replaced the oil pump.I previously had a standard volume with a high pressure spring.When i pulled the engine apart for a knock(camshaft)i ended up remachining the whole block.I replaced the standard with a high...
  3. megacab

    FINALLY IN THE 10's!

    :burnout:Hey everyone.just wanted to say thank you for answering all the questions i had lately.But they paid off.Had a knock in my motor,which turned out to be from installing a fuel pump excentric washer that was too shallow,allowing to much camshaft end play.Luckily we caught it before too...
  4. megacab

    Main Bearing Clearances Too

    Also found the reciept for the mains.They measured .004-0043.Whats max on these?
  5. megacab

    Small block bearing clearances

    Just had to pull down my new motor for little problem that luckily was avoided.But now that its got the pan off,i was thinking about the clearances.The last time i had the motor apart it went back together with the rod bearings at .0026-.0028.When i pulled it apart this time to go through it the...
  6. megacab

    Phantom Knock

    Went out to start the car the other day and thought i heard a knock.It went away fast though and didnt come back,so i wasnt sure what i had heard.Tonight went out in the garage and fired it,and yup,there it was.Car was cold so it was idleing rough,and it seemed the lower the rpm got the louder...
  7. megacab

    Roller cam idle RPM

    Hey everyone.Hope all is good.I was hoping you could shed some light on the idle speed i should be running in park and in gear.The engine is a fresh combo,and it now has a 712/698 lift,276/280@50 duration Bullet roller in it.Im running a dominator and it's got 14.1 Ross slugs in it.It doesnt...
  8. megacab

    Valve stem wear pattern?

    Hey everyone.Was hoping someone could help with an issue.Just finishing up rebuilding my short block and ran into a problem.When i bolted down the rocker arms on my heads,the roller is towards the bottom of the valve stem,instead of being in the center of it like you would want.I tried shimming...
  9. megacab

    Wrong Combo Update.10's?

    Well guys.Had a posting awhile back about my car not running like i thought it should.So took everyones suggestions on my quest for 10's.Pulled the motor and tore it down.Put new rings and bearings in,and finding a slight amount of cap walk installed a main bearing girdle.Sent the heads to Shady...
  10. megacab

    Shady Dell W-5 HP gain?

    Just pulled my heads and am trying to get ahold of the guys at SD to port them for me since ive heard nothing but good things about them.My question is since these heads are untouched what can i reasonably expect for hp gain from porting these and the intake?Im hoping this is the bottle neck...
  11. megacab

    Whats Wrong Combo

    Hey everybody,I have some questions that maybe someone can help with.I just got done building the engine for my 72 Duster.the engine started out as a 68 340.It's now a 416.Blocked was filled,decked,lined honed and bored 30 over.It has a Scat forged crank,12.5 Wiseco pistons,Eagle H beams,W5...
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