I hear what your saying however with your results (572) it surprises me you'd actually recommend Sniper X.

This is a semi-budget deal. And the budget is influencing the parts selection and over all package. The exhaust on the boat is wet that has been semi dried up. So I'm focusing on keeping the air speed up in the intake track. With high air speed there is less reversion. The Sniper heads have a Oval opening that doesn't line up well with many intakes. The Sniper intake takes minimal work to line up. At the end of the day I have heads that cost me $790/ casting intakes $400/. That with very minimal work will make 825hp on anyone's dyno and potentially more if I cross my t's dot my i's when I put it together and don't have to change the exhaust. Is there more power that can be had in the combination yeah I think a well planned and built 572 can go over 900hp easily with the right selection of parts. But now I'm spending $1500/ casting and $550/ intake. Then at that point something will definitely have to be changed with the exhaust...

Vic Jr with 850 or larger 4150 carb. 500-600hp 502's don't need anything exotic.

where does a dart with a 4150 fit in here ? just wondering

my carb's flowed 933 so I think the vic jr will work

My personal opinion is the darts are fine but need a little more work. All of them need work to be build specific purposely. Many bolt on and go and leave 40-50 laying on the table just from not port matching and opening runners up in the right areas. The Vic jr seems to need the least from what I've found anyway and has proven results over and over on builds up to and even over 540. Intake in question sniper Jr just seemed to nail it down with runner length and cross section area especially matched up to their heads like bb stated.

Tks for input

Are you going through a dealer or right direct in Ohio. I did notice the cnc chambers are getting scarce but could careless about that. The others are even sketchy at the moment as you mentioned. I would suspect there will be a decent price increase on these heads soon also. Good heads. If I had a 454/502 build going on I'd be all over their 290 oval ports.

I purchased them through a shop that has an account with a warehouse dealer. I went with CNC chambers because it's the best bang for the buck and it takes tons of time to sit and grind on chambers to get them all even. I suspect everyone is clearing there shelves of stock so they don't have to pay taxes at the end of the year. As with most racing parts I'm sure there is going to be a price increase. Really the time to buy performance parts are the weeks right before Christmas because everyone is trying to clear there shelves and run sales on everything. Last year we were able to purchase Brodix Fully CNC'd castings (normally$1,500/) for $1,000/ casting. Funny thing is they sell you the casting before the end of the year to get them out of there inventory but you still end up waiting 5-8 weeks to get the heads. They basically sell you the raw casting take it out of there inventory then you wait for them to machine it...

very interesting,,may have to try that.thanks