65-85 under.

[Paul Precht]

Originally Posted by 442OLDS

My combo is rated from the factory at 365.
I would be in favor of treating my 365 factor the same as this one:

Mopar 426 365 291 295 1964

Would you then be in favor of running a manifold from an Olds that came on late 50s engines along with an AFB that flows 575 cfm in place of your QJ that flows 800 cfm. Would you give up the valve to piston clearance and long stroke that allows you so much more cam than the 426 SW can run.

[442OLDS]

Originally Posted by Paul Precht

Would you then be in favor of running a manifold from an Olds that came on late 50s engines along with an AFB that flows 575 cfm in place of your QJ that flows 800 cfm. Would you give up the valve to piston clearance and long stroke that allows you so much more cam than the 426 SW can run.

So the combo just got horsepower and is still rated 70 horsepower below the factory rating.The Oldsmobile driver just "needs to work on the car".
BTW,I don't get the 800.And it was checked at St Louis by tech.

Gotcha.

[Paul Precht]

Originally Posted by 442OLDS

So the combo just got horsepower and is still rated 70 horsepower below the factory rating.The Oldsmobile driver just "needs to work on the car".
BTW,I don't get the 800.And it was checked at St Louis by tech.

Gotcha.

They bring a flow bench to tear down, never saw that.

[Steve Stasko]

Originally Posted by Paul Precht

Would you then be in favor of running a manifold from an Olds that came on late 50s engines along with an AFB that flows 575 cfm in place of your QJ that flows 800 cfm. Would you give up the valve to piston clearance and long stroke that allows you so much more cam than the 426 SW can run.

Why would anyone run the 2206000 intake, when you can use a '68-71 440 HP intake? I certainly wouldn't use the 516 heads either when I could use a 915 that's 19 cc larger on the intake side...

For what it's worth, I have a '65 Coronet 426 SW car, and have had no issue finding those intakes or heads that they were originally equipped with.

[442OLDS]

Originally Posted by Steve Stasko

Why would anyone run the 2206000 intake, when you can use a '68-71 440 HP intake? I certainly wouldn't use the 516 heads either when I could use a 915 that's 19 cc larger on the intake side...

For what it's worth, I have a '65 Coronet 426 SW car, and have had no issue finding those intakes or heads that they were originally equipped with.

I'd probably use the 2206000 because you could buy one for $135.lol

https://www.bonanza.com/listings/196...Date/842193838

[littlemanjoe]

The Mopar's have always been at a disadvantage. We are stuck running 50 and 60 year old intakes. They make aftermarket heads but good luck getting them. Very little to no aftermarket blocks or cranks.
I guess we'll struggle through.....

[Billy Nees]

Originally Posted by littlemanjoe

The Mopar's have always been at a disadvantage. We are stuck running 50 and 60 year old intakes. They make aftermarket heads but good luck getting them. Very little to no aftermarket blocks or cranks.
I guess we'll struggle through.....

OK everybody! Let's have a pitty-party for all of the poor Mopar Racers! Maybe take up a collection.
At least the FFFord Racers don't whine.

[littlemanjoe]

Easy there Billy man, I'm just rattling your chain.

But you have to be honest, the Mopar folks have the least amount of parts to choose from. When you go faster than 75 mph, it takes some good parts and pieces.

Have fun and may the force be with you.

[Doug Hoven]

Originally Posted by littlemanjoe

Easy there Billy man, I'm just rattling your chain.

But you have to be honest, the Mopar folks have the least amount of parts to choose from. When you go faster than 75 mph, it takes some good parts and pieces.

Have fun and may the force be with you.

I would say Pontiac folks have the least amount of approved aftermarket parts.