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Thats a big pump and lots of nozzle area for 20# of boost. You will need a pump loop and a reduction in some of the nozzle jets to use a 990.
I have a 7" snout for a roots blower if you need one. $250 Bill @ 337-543-2028
The SAE drop end filter works good for this.
Not sure about the TAD style engines but a 3.75 stroke in a standard deck block and a 6.8 rod would be around 2. compression height. That would...
The best way to get a compression height is to slide a pin in one side of the piston, measure from the top of the pin to the area above the top...
Make sure all the o-rings are in good shape. If not, replace them. Have a machine shop cut a reciever groove on the heads to match the block....
Does your block have the figure eight style o-rings are they four seperate o-rings on each side? If seperate, what is the OD of the o-ring....
Mike, Comp Cams has a composite gear that is suposed to last longer than anything else on the market. I have used them in a couple SB Ford...
Not sure about mounting the rear at a angle but on a solid suspension car the rear tire pressure can be adjusted slightly to help steer the car.
Flat spot on pulley is a GT. You should only run GT belt. Round bottom pulley, you can run GT are HTD.
BB2 head has a small runner for a blown engine. A CNC 3XTRA on a 540 with 15# of boost should make 1600hp @ 7000 with a safe, bracket race style...
Not sure how much air supply you will need with the shifter and air throttle but I use a Contender Products dual regulator setup with a single 2#...
If you have Dart 410's you could switch to a Brodix 3XTRA and still use you shaft rocker setup with some minor machine work. Not sure about your...
Never had any issurs with the 426 forgings. They are pretty tough. Did they come already pin fit are did you have it done? Does it bend the...
I never ran that much boost on a .990 pin. Is this a BME396 style rod are the 426 forgings? If it's the 426 I would try to get the pin end of...
.005 to .007 will work fine.
That seems like a really light weight rod for that combo. The normal rod weight for a bracket style BB Chevy with low boost and that length is...
With that kind of boost and RPM's you should still be in the safe zone for rod life. I would try some other way to control the starting line...
Make sure the pilot is engaged in the crank and use bolts with a shank length long enough to go through all the non threaded parts.
Like said before, there must be another problem. I, like many others have used MGP rods without any problems. I use GRP when the choice is mine...